{
  "manageEntity": {
    "action": "Update",
    "entityId": "834575515",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc99b0f7f7cfdae29c6d40b66f327858356dea636dabf7ed63bb64fd2623e2917",
    "signature": "0xa2f646bb6f6a5cda2a312c45666413a8f25f7c58bfd750de994324fd45da51c5167aebd924ea3034d3d30a50a2be93a5220c8dbcd801751d1d3900afe4772c601b",
    "signer": "0x2eAa174f648269f4b568e7C847559B5Cd718eB99",
    "userId": "834575515"
  }
}