{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2619",
    "entityType": "User",
    "nonce": "0x3e524477e50dfff486656205fd26e9c2ba0ac500d41eaf2357d651d37e1097ab",
    "signature": "0xfccc39943596f77d84ceab6ed312adb2c8421d014bd887fe47812af0962b39f53780a831188bb3bc4f0c37eca74981fb38dee492ce6a99c240f7ad588dbe70fd1b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}