{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "88170",
    "entityType": "User",
    "nonce": "0x7fb81c5f2a65dc75740886ef0137ec28556f85b7519be9343d3f393a465fe98a",
    "signature": "0xa171857862d1c40da15fa8b3b82d1532c477ce041d03b947cc9ce00021ec0d550dc844d541b81531a590e50ba58bc444c3f26b10b0dd2d7880b0949f01e634e11c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}