{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0xdf08d8154d8b80461743bb3741bae1127c6b1e3dff019ba25298c535139b9457",
    "signature": "0x52e13ea0e519dab84b622ba4f35f341deb44365a1ea392b182bb62a7733c37a226da6ed76666ea2c6986d0babb39376cd29d681d3bbea735e5cf07bc8e0776a31c",
    "signer": "0x6bB4470b19120c94041bFafbC3E706060049e09F",
    "userId": "249229018"
  }
}