{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "236599",
    "entityType": "User",
    "nonce": "0xb76981040223541a928dea568c948b03908529ca4baaa4f0bcc7c331af70eacc",
    "signature": "0x5612fb65e785ca657df750f1e8177c0797241d769eb36ba10894f57b104cb9b92d17d2bb49444b646281f836a0000182dc8f66ea81431e52cfd9970f9a111ed31c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}