{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0x18d6fba776364da7b7384821f6ee01b0bd22f0570bff76e79ddf4f5b7b2e2368",
    "signature": "0xcb5760468b344240adcf51be1ab97c403736548acf925e073c6d404e79bd864156f69d2c6ac3bbea42b1d2da7f6303567f552687e93f82dd80ae6c2278b7018b1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}