{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582209575",
    "entityType": "User",
    "nonce": "0x630d622b1746140d1cca582ebd6042425255974415f440ca18baf9ada0850ece",
    "signature": "0x985f2d51582a0248b3da2b3eb86c52ad0e1532f6f804b318cf853380921eb763653dc6c93659539d6b9ef0b85bf2c95336b41f2cba0a44b7c8a4409e59e52f091b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}