{
  "manageEntity": {
    "action": "Update",
    "entityId": "766172020",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfa3e33ca8b5516b8823e55a2c4afc31aa7bc7afddee3e0b30f6fd61e4e99145a",
    "signature": "0x34f30ddcdd72e0088514cc2d41b87395769cfa5720531e4d0189242e9c4814a31e7050eeca4104cc4984dac40cfe7a26e1e6c751084406c4def1e8d0f3dd8a611b",
    "signer": "0xd5d2849B83C7c8cF0Ef86e1361452992a16bCd52",
    "userId": "766172020"
  }
}