{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc6a19dac4662e70725ad32ec4ab7c0865cc451e0673853ff3f8deb406fbe9669",
    "signature": "0x0d23c02a348eaf745d3ad11d0850981912b10f32069eb458d473134ab0be00cf1ffb72f97b112bb29bab35aa203b5244f24d6a1c6f3597e329d4cffffe8d09a71c",
    "signer": "0x5ecfe7D3eE5B8A4A2712228c53c986319bEcB4bd",
    "userId": "569652899"
  }
}