{
  "manageEntity": {
    "action": "Update",
    "entityId": "293071658",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3ad05769ea315f5a523e8ed03b09f23395bf385d7cfffa5a52416ad2acc97601",
    "signature": "0xa26e01c90f267ed6f6962ff6d7ea3c1600a00a3e73fc3396e71423ae3a07901839b30353a2547d5fee7d992e3362881be6fec89cca255694f70788145ca14ca61c",
    "signer": "0xf0C352ee326e6A315EF96924eD159709F77e0398",
    "userId": "293071658"
  }
}