{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "656756",
    "entityType": "User",
    "nonce": "0x703ff641ab82632fb63d678bc046206eabe9a317b86d889bce2b137e2977424e",
    "signature": "0x2ad0e947c0bfa1051c0740e4bc1e00c8a18d8511c76b08ba0e827fd35c12cf9c65d39b142e2ba3837ea129b6f4671e4bdf93e159e5629cba722949b855d47ede1b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}