{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123836",
    "entityType": "User",
    "nonce": "0xbd409b09723b1a4f21487d28c40dbf18a0b6527e6824d7a4bd5572516457ad6a",
    "signature": "0x4ba032fc9c5e5186297a42cab131762ba92735fcaa587bc2952ba9c8ca5936377e35ab9023b374bc74dd3c6b8feafd8f176d51def917f9fdb3004b5c3f910f361b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}