{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0x62b2d4295208ac693ff606bf36ea7eaaef69f1873cfff869b590333402c560f4",
    "signature": "0x663017ce4982201f2c6d07e354c9cb734630364b230b8b3fe6d6d72408478145013944ffe94e1dfd98cdb1fa4e41c2c544e20a9c893a69b660097e722ea4ccaf1c",
    "signer": "0x7e9720d8C73bd719B01E9408E15C2884254beC2a",
    "userId": "234846549"
  }
}