{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeef6c11a6eb0b272a5f3a7b21c08cb00224b737939f573031a8aeedd653a047c",
    "signature": "0xea2d62167dae3756df27334e17819faf364d8dff28798bad1466652007ec2f9222947582401974669def691ad6ccf73c19fd6e180855c401596a5d08e177bf461b",
    "signer": "0x6cB2837bF470d43cD05f9731F22A9F53a436101C",
    "userId": "616454245"
  }
}