{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315617",
    "entityType": "User",
    "nonce": "0x1e2c4b5ae786ca6b6e62e11c729e26750fab7e27f0787e099bc2b3a87051a0f9",
    "signature": "0x42121c84eaecb7f1115991ca9b2df025ead63906c9df44738790910cf2befbbc1d4e6a69ef5636dd5bdb39f7643daabb0dba4e69f75fcfbd996f9a70f2f80cf91b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}