{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335638261",
    "entityType": "User",
    "nonce": "0xd82aafa3633490b8fcbd46b41fea1cdd73a89eebce398a57c0f853c3ccf6bcd4",
    "signature": "0x39ab59132dd3e2c550a02bdcae2ed9ec075760d1daac08945c16727d4174e3195f7dd52ffdfeec15cb51946059b7c0bf0d8d8b39ad7bc6192ffe27ba68d2bb1c1b",
    "signer": "0x4760a99eFF6e0AAAdbB76a89f32a78c2f0AaFBB4",
    "userId": "38448"
  }
}