{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "448003564",
    "entityType": "User",
    "nonce": "0x1bb5d0e38bd191fbd50d2cee25da81da41867da329b1bc88072ad2e1985a5436",
    "signature": "0xc7da0d2182d6bf5d9d7548989f534236264bcb1e0e6d3eee917f543d474de12f022d4ebfda5acf414d8df51fff80dff91cf75a770901b6e88723dab104c2f4ae1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}