{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "725479",
    "entityType": "User",
    "nonce": "0x9c25d3fc2cc750eee398c8e4decb9d7b478a3e5d893755a5acb4a79c48da969c",
    "signature": "0xde4a7dc9ea0b7cf95189c9517b338f963d9517839561143cd9a98c050ff9074b706aef517103e279425d87ccb3516a212867df8c8af71a89555e849085f6f9831c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}