{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18115",
    "entityType": "User",
    "nonce": "0xf09bfaf2473bb83a17d32434a4b1e23f16f54fd44545dcf0414de5bd58a1067b",
    "signature": "0xe29c6d93a17ba34dd0c4800cfd8db2b8fe8ba35e60427f624f1dc89b626976e028d2db69c07b48bda4528df1a21b9f0974a9c7191c0fc640cacf2fabb99be7501c",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}