{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x401bd27e71693979c375b171861f91cc30e5a34fd48cdb2d1042424a2671fe8a",
    "signature": "0x53d8250c764724bfe05ec786f35885eb2ada1d3c9b0f8d8e2ce0cf5265260de06bf3246d59766a10f3b5046a34049efbc06d33b281c4810589249260e5a59cc01b",
    "signer": "0x038D5738B7f6255E3283bE968707a9C5643d5257",
    "userId": "979702154"
  }
}