{
  "manageEntity": {
    "action": "Update",
    "entityId": "751214239",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2ad81c3b4af184b3042e3b10e31a92e12cba4b6e48b0e24dbe0fc2a30d1f9c5b",
    "signature": "0xf42fe7e4118b705f212b2d973ab2e1df427ff7b2ec6360baa1d830866238d0b43e8e22ec1da0decbfa18a35b1a76ff9a61a2f3651c7528aa6cc408461e8da14d1c",
    "signer": "0x7A36eBF15fC48F5a684Cd15006959be84dFf15d2",
    "userId": "751214239"
  }
}