{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x8c4b699addc8a715c0820f4cfad2ef32311e44b599128a31b830a8f5732330fb",
    "signature": "0xdae09c44132b03dda486fd12d169d0968bce8c1eb909ca2bf74e3886f71e50f67704b45c9f70d388a5558242fe932384cecdb0eac317c6f57ca23c04933cd8b81c",
    "signer": "0x4C350beEFC6958481021E2b680C30967A52A0d66",
    "userId": "645959132"
  }
}