{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x19300171a311e6ac9120bd78368e6e3000bb2527ccc8a7702fba7474b51cb1f6",
    "signature": "0x3a05c29a940960f9f8c7504a281e7b4f11de7243a00a9f64dbae91b539660c816a09565ff9fd8bf231549ae6253f5ade842fd71220fe006e90b5260766837fea1c",
    "signer": "0x85b05A5e7cF0feBb14BB5feC1E645dB5151F8e8b",
    "userId": "104634770"
  }
}