{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994758391",
    "entityType": "User",
    "nonce": "0x47eedc86039f8ba12b1db8b73438c3e3b3b5a70865f4513eb6d43bea4d9d3b9b",
    "signature": "0xd832bfa3376184d4ac9ce8607a41ef18e8add0ce0bab46ea45a24ed1a5d04a283f13dcedd4895389cdaf68559636a1fc446155ce1f005aa35feae92c0e1945991c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}