{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984215347",
    "entityType": "User",
    "nonce": "0x09820ace8bb621efd40a5fad7b2bb4b8761750fe3b96686e210227df62a117cb",
    "signature": "0x52fa63f75d7b7def566467976015b2c24ed13d89c763ac5b6a7042d0aa189c1770de83b9e3d90dc6e2df6510da1dd98a74a3472f26f22a34d37ab522c4e93d751b",
    "signer": "0x20a821B898F6Cb6BB0E5FB2460eD4225B40Bd68D",
    "userId": "198400104"
  }
}