{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xd5a3d25c47694816e8fb4680de35b8ad8cd4b47d\"}",
    "nonce": "0xa8a31fb8e49a02d60f27ca2d32df18c918e2a446c56380f48b3f3632f708acde",
    "signature": "0x89a750ad5aa8ec2bec1d36c5f515fa07881a92a641cae61162e1c816441a9b7c4deab2af63fb64a3303837bed31ccbc00d61f1b27928fd7bfccc50b2707d94581c",
    "signer": "0xa5151D7f37E0bb23cB521A936F65fEF7aD27cCe5",
    "userId": "465684452"
  }
}