{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74388",
    "entityType": "User",
    "nonce": "0x1a25a685a5aa9de4ca9c9cf54948d790468a662627a258479958513f88e8a32b",
    "signature": "0x7069364f8eca14465311b94dc3ecaca42bec1781a0d24761fe10bb3cfd6eceb00e2aecfc6c036718866d57f5f5f72a5b4e566653b3223b5f4a91ca800d88d5811b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}