{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xc87ddab83a1b5ba74984861952aaaa4a2b3c775bb86d9824a6833bea3c3ff41c",
    "signature": "0xf4e7a0375f29d7ab5f19b293143df988a7ee704ca87f48f592fb6bd9f1eb61a80560e01b0d771e2f19d81d2217408d77371a957bf2b385fee9196b0f717de6c01c",
    "signer": "0x0256d7138fA82c5d84f147aD0b78823d2Ed9Aa28",
    "userId": "609368896"
  }
}