{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "652791136",
    "entityType": "User",
    "nonce": "0x313d1bc110c37613fce76141bcebb1a46149877ca9da9ef5316a51716575a30f",
    "signature": "0x860d67eea7f503da41457052ad55f482daefa60ae8204c90d30a224d3f9d78fb07d422b69dc0cc0088b0b7930661a73543edc21792a89a3282a619b691548f561c",
    "signer": "0x9FA029c6E43fD9781215e024e9ae5802602Ed2Db",
    "userId": "738673571"
  }
}