{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "253360517",
    "entityType": "User",
    "nonce": "0x85c8e29297d354acdc7be76a9e9f0b985b3cfdef6b231c52bbd982cebf48f043",
    "signature": "0x680ad7f5b01a063c9bd4cfe349107b5178480cd94c92b9ed2af92b37e880fe302a56db3737b0bb1affe7ccb300956d0a8808a983b775b375b3532f608aa631dc1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}