{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16719",
    "entityType": "User",
    "nonce": "0x929aa20cc70a210e88d3ed69eb3a416fcd7a64a7990d59870b5f17444c2ba290",
    "signature": "0x9f4eb0e99e98382046a75d86a651206ea737da04f114d8fa78bc87d851e9624b5e04d74068932889436bd9d935edcb8bbe651266d8d0e435bb3e1943c6c20f551c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}