{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "562822143",
    "entityType": "User",
    "nonce": "0x682bc1dcac44ea2c32f570d11eee55d9249b62709fda5d3dd267603843469ceb",
    "signature": "0xb97fbeba53aa0202257b088aca4bb65dad56c50faae758173774f45795e4239c6f9383889bb0fe0130a9c3255c036169072c39c4cf53114292b760401782d4601b",
    "signer": "0x64B0DA55A684D51d3EF114Fe644eac7db132fDb7",
    "userId": "121304325"
  }
}