{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x4e12545cc1acb9183c19dedaed316edd7a399ac582c04d75944efdb598fef12f",
    "signature": "0xcf8a5315feae35a9b4fa852b00c959b382b593c2508e4b1b38cec8f1f4934c0d40568dbb9f5a28e48b8aedb8ae795db1aacfc7f597bb73b3cdb6b180093652cf1c",
    "signer": "0x06e4E068e92e3033AB2dcaf7E86aeCaD6eDcE719",
    "userId": "45970"
  }
}