{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83223",
    "entityType": "User",
    "nonce": "0x866a0e4c2b56ff6f523173df5e6a8cb19ac5b682fa7dcaf15e071f6bc333a31d",
    "signature": "0x81834a44b728c2a08452557fb6776c789832b1487e5f1f18921193b8fe94608362690b47237491858cbc4bddb2b39ac9ca5102d3640d43eb1da60095f0b1c75c1c",
    "signer": "0x2B023F6B15A25e65EB374dd5f3F2beF64B17fD5F",
    "userId": "315709354"
  }
}