{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240258423",
    "entityType": "User",
    "nonce": "0xf4bc454ef26c6bc14b86648fdbe457789679bed07532023c227a7c49e0680db0",
    "signature": "0x812b9353c4e741eeed36d2ee49783182f4f873bd88d549bd621a1299a125c7271fd1408a05dc42005ead53f355915c488d6d2e6bb28c6e4e3af48c3a2782355c1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}