{
  "manageEntity": {
    "action": "Update",
    "entityId": "332331582",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4ffd4c51d2cda9ee0ba6e21ecce8622d1c091677d30c94df45ffbb7e68639de4",
    "signature": "0x92c3af1077e7820c10b4231fdf8a54562fe9cf4b5466fbd587a938ed1f4d4c666a7497a96e06c0853f006c0eb33eeaa3d6fbf4c6d0ed62785edff2f21bb588ad1b",
    "signer": "0xDF854f9244804645E46700d9756AbE9Df9e4f619",
    "userId": "332331582"
  }
}