{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78483",
    "entityType": "User",
    "nonce": "0x92f8f7822db41bd3f9ad7c84d6b0661f81ddfa21fa8ce07e8d502a51bdd729fc",
    "signature": "0xa708660792e8025606099320ca799db05acb55723fcc45483b2c13e6ac87959147cac259e0615a6c22db27c98bd32717400d6bc73ad3ba75634b872934dd479b1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}