{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "894327847",
    "entityType": "User",
    "nonce": "0x3af0ab7663987b86b87b5b4683a3ec818af3d05f6f14a2c79d011b2ed7120f48",
    "signature": "0x6347ad6ad73868c73a2d217ed33a9891577e5d18d2cbebf9632471630e96661c623d7ddc1cec44f63bfcd1e758f041e3bcd85b3e544a0f4cf0921cadf5a487951b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}