{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "905219052",
    "entityType": "User",
    "nonce": "0x54a139d9041db428dac227dcbaa562ab2aae7f4cb6203d017c1a8d73476a0012",
    "signature": "0xa7615339314d006f9f37a47c2aeb071525ee219154690dc5735232f6fa08cdfd3e91968807d6d0794ae1056b70c12b66f356ad2c4762727a784da47a5397aead1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}