{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314001",
    "entityType": "User",
    "nonce": "0x24b54baee9a3e1d9a75144b8866ce9789d3ee1fae1c0e47e5b8a0100592c2556",
    "signature": "0x4199f587d827c479b915fcdcefababd44832676707469509c845083e9ffae245696a8c3c77b8a3e1c89479c05a54cf2c552c1b9fd3e4f50eb4397ff59558f5131b",
    "signer": "0x14693D3dDF26e0e70845c87CddaC0E2F4692c710",
    "userId": "553005221"
  }
}