{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0xaa8c0fcaa92ea788acc0614b943677d80de3a06cba8788afada2f0f3ef94ffa3",
    "signature": "0xa97bec881850ac9d2084648db2310a1c778645070647a75b0ab1b63108223bd765d4a48d9ccf678dc6d475928540d810ae57d725cad3089c8352c24b78067c6b1c",
    "signer": "0xc76D100aD3c4fa27A6AB1129336cD9F0dE944556",
    "userId": "370431760"
  }
}