{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7bec133fc709393832e646e62ad6583ccfd5a2c8fa2b09fa206f1fe4b4a9bcbc",
    "signature": "0x3df952115579857ade1d0342276586c0c9f8f520f645330e7f4217ac24c02a7d7b39fb2f3bf73ef5ee646ea07721fd8744f4365908169bce1ae7b3e96c29f7a01b",
    "signer": "0xa2ecEAAb74B2f9a94c5C470449fd6E64c121cB7F",
    "userId": "743206207"
  }
}