{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x1007448f4a77447128a2ec34b48eeef47ebd57d8680257a599bc4c919f46c31f",
    "signature": "0x574cb6290ed6f37d16039523a49b8cd106acacc336838d8d998735e72dd39a977107fe59924f05e51743b26e49186b9193be797c6b74f51ae995a9f30ebe46851b",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}