{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "975218829",
    "entityType": "User",
    "nonce": "0xcba4f2573fafc6abb568a1912e491fd513023292489723d8a980cb16244251bf",
    "signature": "0x69b7b54a081115a4424ac3207b0567fc76029156bfbdf5212954a162e4ac216f0c78eff7a6a036c4c42c4e103c99744e31cafdd6ad4a806ac63f44274a4177b81b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}