{
  "manageEntity": {
    "action": "Update",
    "entityId": "230922729",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x167e4f65ce1525e54b33a63d9c0fe1e9881e1a6672dd46d2e1827c5bdd4085ab",
    "signature": "0x2b0722b46b5890f71aa5f4ca9bab36192ab33523e29fbe156d307d1cd0e7d05a51622f86e0a5475568cdcdb3ec538b8879938cc14d3d87b56c889c41750e6a321c",
    "signer": "0xd7fD278e39f433974953D50A37B02EAC55eFC678",
    "userId": "230922729"
  }
}