{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "955997519",
    "entityType": "User",
    "nonce": "0xa9dc5e72f53420f584ef6523fa6e35ab81120b6e050282d8d2c3ae9360f662a2",
    "signature": "0xb595cecd461f2680411cdb307bb76b52a373bf0205de475edfe2a771a1303d6e42ba8a7a3fc6007c9cbc2bb47711837d77596ba96e665cb1d6c441da18ad81c41c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}