{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241009",
    "entityType": "User",
    "nonce": "0xd000af7d7e631eda59f3a4145260ea2a233a82050f43f788d506e67e3845fb11",
    "signature": "0x72625ee8966885190dc1bdce96f670ebd88e2af8bd0b9a8387b19756058dede940f76d3035986d12c458c607a178b4e48d6d5fb9f6bdc80a4469d765d6e837601b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}