{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665370465",
    "entityType": "User",
    "nonce": "0xc96007b4b3ac2f16fa4bb987cc789f4f5e15418cd73c436024f2dcc989ff628b",
    "signature": "0xdf21f038bf38314f48a96ba68fc63561ca0ae5e1dfb652efad29be72db1185410ecec1d23734f878337e4d08accebebb8effbc3240d823a0d1284bdda91cd7481c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}