{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf275c37feaeda9b86a21598563d9b2f3384726d776130b65156eb508440097ad",
    "signature": "0x8a0930c0b1d0869b87b0b2e7593cf9e406d939fccb660088640c4fd523ca2a191259ffceb017250784dd2404d148e21f35a8e923157e09372915e85dc2dda7211c",
    "signer": "0x31f113DAfe6A8b8032CaEa0Fd666C5Ea05E56332",
    "userId": "287310001"
  }
}