{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x87bf0d73a5953c8e1f59b3fcd957cbd97ad04a8b0bf153357dd4a18b64e8ec2e",
    "signature": "0xc53220c8c1e976ed723dc31fddc540b42987523d68c343d2dc5a2dcf04c5dd2d52afb73e3529ec7e573090dbb7a4a19a83b3666e47de54769a79561b9be8ab161b",
    "signer": "0x8c83aB7F6a7f7A93A7CeFeF6E16b212bA43529f5",
    "userId": "549340592"
  }
}