{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319612",
    "entityType": "User",
    "nonce": "0xa497ffd9a3e75b72b2b8098b56650966059f16a5bf0a5048043f87167a76d007",
    "signature": "0x5b03a0aa25e1d2356b245332cd69908080de6dc46371ccd3d21845e7dfcc69c91bfa7b2bf7c80cba5505b7429bebba7f3774a2f84b5101ce946f6409bacc29611c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}