{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143786",
    "entityType": "User",
    "nonce": "0xf940b4c28d9ae3bb138ec591be7256b537979b3e4c229e88df315ed904e491c8",
    "signature": "0x13031eb9d1860ac6bc97c1c2ff3a0864176b6b1a7794a5de2b677afcdd34c7bb1114dc2b86b7d8694e4fc41e43a70629455e4a09718d19c6bf14914551b40c9f1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}