{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0xa6fac248026c1985b771ed41c302720f855b7348157b6597061250494957077b",
    "signature": "0x59bae832b5e6b3a4d0271ab5be8c464a92e0c675f9085cb7a843af009cb3286c302a4a56bd4eff03f4bba4527ecf3aadf5b75e30d4a35724ccb3a8bfa95b03871b",
    "signer": "0xd0a859CF2624a008D7A044Fc8d234f7A34024587",
    "userId": "917830143"
  }
}