{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385952",
    "entityType": "User",
    "nonce": "0xbc28f4489b623366447dbcf81ab4a9cbd69816c338f679133f16eddb15cf9838",
    "signature": "0xce948c75ba1f15b5ea37fc1ba48dda091d9c327670ff4e7d706813696569b9da1869f86a89a1dddc281ea3ff65d62ef7f6e984f92449632b0eeba9942c578b921c",
    "signer": "0xE534A1ad2e8E1f616866185D1efDf463B0eD38b4",
    "userId": "353625"
  }
}