{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010398",
    "entityType": "User",
    "nonce": "0xb2406f997e0f0b0f4e28788f90fbbf449d66e3a8f0f1f3186bdeb5215a6bd57b",
    "signature": "0x4db0ebc8cc2e748246dddb8120a91cbe04f02428b731c2cef88f3ae45ca821676cbd5300bb087af470d60435fa73549c027fbe65ec1cdc6da68a75a05fc8072c1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}