{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xea3c4e7245bfddfcf4085fe89753f8ca1fb67688ce18d40ca90391745859599d",
    "signature": "0xbb84286d58a987389f2a6c51e76c15561441deb05328758ea4500f870cc415363a72fb2fe8fa575494c80de7f4a582cbf8287db4330347c3a33c8cc49bb5b1ec1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}