{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55368559",
    "entityType": "User",
    "nonce": "0x54310ba4ec5a961fba5871d54f28a8842bc3e74354525e7766a6c22553ac8ccb",
    "signature": "0xf47c1da88c6a59267ddb2008f57be71ab529db1b570084290c02c7dde05ff589250436f04370e24c98f5fde894d1a87c63b00603dcadb85a21874f524ce6f4901b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}