{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618242981",
    "entityType": "User",
    "nonce": "0x6da13ce09dedb6d83f8d1253d2ad60f87aae6afe4fa5e7248935a0857791b228",
    "signature": "0x2978a15d2695d5151f4dd4a9bca04a66840c48abe4726cf5839360be07439fd2327f189f0f1217583e23e3ed2b57e4e04a0222904be6f335ca722a70627be8e81c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}