{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xf4ef84b78589fe52cb2a1cc5b23d4de62ffe9d38\"}",
    "nonce": "0x00fac6438ddb2ce3d2f396489bc2ef53964afaf04af812bea78f44a9f3c39b89",
    "signature": "0xfcb590306ec8e118e179a19ee210d72f51740b62e6b8ec7ddb8a71deec228ae3034c1de87a48b7c8f23f97823ed4b0275d5a260ced081594f62f02b549c1829f1b",
    "signer": "0x91F5ed63D3336C1dB7AD6507A8c563e4481A0158",
    "userId": "396153512"
  }
}