{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "914786391",
    "entityType": "User",
    "nonce": "0x8769c8edfe35443f93886f19d7fb354ef009983daee79c5e4f90b95d69ee0b17",
    "signature": "0xcf82eba0728bcfecbb9614caa5becf79952de440b62e0292df99c272e74ed0e101774b1ecf92fa6e9c5976e129d0d2bad96a8bf4ddea841354408db095665d2d1c",
    "signer": "0x9424341Bfb323e11bCD354a661d139CBCE1C4be9",
    "userId": "259214410"
  }
}