{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51295",
    "entityType": "User",
    "nonce": "0xcb5bf2659e88a1143a2e377cc3c28699276de7c27fa9d989e6e085aa1bfa5064",
    "signature": "0x1e4569a18534f9bc16870d3fdc6f01dac5328d4d6f01142fd76d0e1830658324524d1af8ed10c521278ca0c5d248f76887bd37252c10657a5222bf227024f9a31b",
    "signer": "0xD24F8A2501472e4c9FD5dfCCDF80B550912c7FB0",
    "userId": "887242445"
  }
}