{
  "manageEntity": {
    "action": "Approve",
    "entityType": "Grant",
    "metadata": "{\"grantor_user_id\":17687}",
    "nonce": "0xd10953c6bfdaa734a01e14546f1ba8b329c58c3b34f2f38c0dcbb77d6824f569",
    "signature": "0xf416b34484b54e59ded3ef9702773e4703703529cd65ae478da640156ffb01184ef05ae7f1002760009ff15099d542e491c8481a19d8bd65e3812207aa4a0c451b",
    "signer": "0x15c09392b3d192e71eE5b8c7648fCf318fe1bD7e",
    "userId": "86672"
  }
}