{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x99b52a2f5c07d493a5ae42d2a9de4f28e6c0b2261bbeb0bb254c9389a73855b0",
    "signature": "0x7c6dc73989caaee16bcdd1f5e651bef674acb7bc14d92ac9edd023ddff8820e835c9fdfed81671bc2e20795c2aa98510ca279c3f172798653eb8ffb9df37775b1b",
    "signer": "0x8BB32fb3Ab4119262824C8679aF332559A0C5bdf",
    "userId": "390149336"
  }
}