{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487640022",
    "entityType": "User",
    "nonce": "0x2e0bd60bacb7a1a600d00893d942db51449f531e503f7362fd18b34cdedaf35c",
    "signature": "0x03ef99faf0dd17d9beecdb0c75331660e08c7862704575482882b0f6a022a5bc2f0bd947930e8c60b58e93baa574ebc9eec5a7aed7582bfb01be5a3882bf641e1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}