{
  "manageEntity": {
    "action": "Update",
    "entityId": "740716267",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieravr6wdzk5epecd5a7y2ato72m2kefj5vtlhaxn6wkjcf3kxxga2cq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":34137}]}}}",
    "nonce": "0xba9df35e2b2af30d25ff5d1f0781c41e5208a061eb9fe17f1b40a69ff6b398f9",
    "signature": "0x29b8d7f9206c5a819d695fd26f881efe8c993c47fdc891bc3b607986f42fdc084dda777d1292d57c65807d6191292224203fdb15156476a3f1e5114feb0ce5141c",
    "signer": "0x8876D680776210559B6cf36a9A3e1969F0763775",
    "userId": "740716267"
  }
}