{
  "manageEntity": {
    "action": "Update",
    "entityId": "706820462",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1c0a58bd2134feb9071e5356406139b3314015df2c16f13dddcbc99f5e291762",
    "signature": "0xe50d819c80da1b20d193ee442608cf5a13cde6e804d85102be5dad2fd6b1c03371000e8fc4ed2349459b5ba5c772696a74715a515d04e201809f90beb3e853731c",
    "signer": "0xcFFbcec789772e42e8Fcaf9fC75B76Ee23C3B987",
    "userId": "706820462"
  }
}