{
  "manageEntity": {
    "action": "Approve",
    "entityType": "Grant",
    "metadata": "{\"grantor_user_id\":1389486}",
    "nonce": "0xa56812768517a1b1a0313a64010e443e75690f65c1b832484636a5018c448aca",
    "signature": "0xb78fe342ff81b1455c2ebbe14cec3bffcee9d65ad89d91eb9d04efc046d022f57ffd63ba1b1fb9efcb11cc71f2b27fe7b6a7cf765b5f5fa2c6fb7a7cf10b34971c",
    "signer": "0x593095CdF6998387B0c1bd237B5e2e1f5022C99a",
    "userId": "77401"
  }
}