{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62780",
    "entityType": "User",
    "nonce": "0xa7a23ae4d912bd96855c03048ba73e727e31d03e2cfe59f1a8b66a57d49eb0a5",
    "signature": "0x9f6ef0f2ad5662a223e8c6b2df65eb69393ff94580ecc8d5b554674bedb87ad03eb43ecc65471d68dc1285e3736837b00ddf16d62f12caabafbc2a7aec8d46eb1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}