{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0xcc579c4760a7f1899c8e6a16a3ab7a17e2d273f596baf45fd65d2693d05cda02",
    "signature": "0xc0a62a1944a584d4ae1b29cc665ae2940faae1c0390eceaffa36b7b18c20da39470bbf3bfaa3a2040e52aa06330221873eed7495b27f4a435c8eacf51e9edac81c",
    "signer": "0x447d928bE5482465bc9BdA9e3f54bA379fb65c79",
    "userId": "298316819"
  }
}