{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "417627728",
    "entityType": "User",
    "nonce": "0x349aa714d48ed748b821c0b3fd0551d864a5d1ba81e0708b66dd48ec9710ddb8",
    "signature": "0x6895d8b2c4b941695169845866219011416e3f5262845b2220518a2ccb1995f5592fd8fec8ff8aa4fed81ad7b97a10c06cbca0722536e3d9af28d9065c331a8c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}