{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0x6fef26350bd1cd4fb9217626ffa891cdffdbc30394b8491f6ea039b75d2fc1dc",
    "signature": "0xfaaaa050f63bd60c8ec2c51a46ed8e30ba457ddc6af81a40f2c9f297791ff5d338e11d3c50f03cddfdf7431fdf0b03e66d4fb0943f4ee87bd9c6eb402ad651181b",
    "signer": "0x367680E9B4EfE77a6636091FA6c2c71749Cf7C60",
    "userId": "40274"
  }
}