{
  "manageEntity": {
    "action": "Update",
    "entityId": "818927171",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe532e9e1ee31cb6d17f93b731aa3e325e437e28b4255d691d70212a6a4f53650",
    "signature": "0x26d856cdb94ff6cc9d70cb98cbcc3799be34f606466f490a260232a1f88869b33549ed2b4e3a7ad91d944741efd24adcd789b8b8285858c59f20b6e6349ba30b1c",
    "signer": "0xC0b1d5B2f1D23A64EC8eB8599B75988529d98d67",
    "userId": "818927171"
  }
}