{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x66244180d3e3989b7a9246d0e4f6847a4b219d938e876d13375483be59fdedb9",
    "signature": "0x5c2ed86bf94ebfd21f31fa6cbaa98b492b9dd2564dbc107de4a7c8dc67b6c1ac1083fe70c6a551d5a3e1c1373767d328e9eef84162174ed607d06c1cd9c0f3a81b",
    "signer": "0xEeE12Ae1A72f1A28574A40111a31BB81B1CE0602",
    "userId": "105387530"
  }
}