{
  "manageEntity": {
    "action": "Update",
    "entityId": "781697846",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3e1c27ee29353993a760327fbaf7e721a023438e8f1e06ca7a412fa6ef613c12",
    "signature": "0x610ecb17103a9746d41d41ec0fc3a049c4a4c892c8e177444814cd54919840711e5f6ad53344b978129d9759e3eb3afeed869dfb713bd6d660e0932524a66d0a1c",
    "signer": "0x4af04aD54260F3E5dfDc9242FCe6e7F1e16fd94a",
    "userId": "781697846"
  }
}