{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x29e6a0c68bee85c6774efb989c17f0c943ddaee9548b595806963bf3f2f6e7ce",
    "signature": "0xe50d5bc67822241feb6d901ae731fcddb36932ffd202d3fac6da5b17737420da103ad91ef6c663f1c63996ea1c3c0d2d9f0facb9d98ffdd729e9381ca90c5d541c",
    "signer": "0x45C3C3C84b1FBC3f9ecD57BB3e43dE4044d3Ea3E",
    "userId": "975596375"
  }
}