{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396558",
    "entityType": "User",
    "nonce": "0x45e44eef486c4b2e4a170369b8f03594ea31a4902b73b3062c6a1cfe4ef978be",
    "signature": "0xab5ff726bfdc9fd47d776c7db0370f5e4810a85a1369ffed0ec43277be192ae376e69815fac5f1b70c8593ab2b3a66b21b6e2686a410e212226cf8ac34b0fc551c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}