{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0x50b827f8b308b181e787a0972cbd8deaf836dd2b37fd7bcaca41b8b701c1e156",
    "signature": "0xeae5bd7579be5f19c3791707db3518d04660429f495e0f013bc7af7fbf2f72285eac328b4965faa6708e442c69baacec35d78e32c39304cb5a99933bb61471c01b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}