{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77453",
    "entityType": "User",
    "nonce": "0x769bb5acc973f16443132858f912b6fb519af2de8b20a5aef48de0b2df5de9ba",
    "signature": "0x8974b8893698142fc4ac76370510fdbcac798bdf26317ae34728aa73f2fb49230f3ad8d9c0f4e3bccf8c93be53028495349d9df08d6be1b3810473af55ed78c81b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}