{
  "manageEntity": {
    "action": "Update",
    "entityId": "622039938",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x80df80fc3f84dde158d861d0fc6d7f4c4ae898dfba896dad8ee4cb9133db7c43",
    "signature": "0x3f575fa80b26add7c9249e36233d7497879f18139594c9980cecce1a7c0512bd49805d0519c97690e5f380eb00a82c31c0b3b03001a98f85c28f0a1ede13455e1b",
    "signer": "0xB56D853E936fF5c61f93D1f54D189DdDf0cad807",
    "userId": "622039938"
  }
}