{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x27211036b161247bfb2f8dd6b512a79db2fa86254cbc81cdf5d2ff40d93ce77e",
    "signature": "0x5a2a6de8586b475e0f9ed8b70d4829ec19f956967fc0dd08931eff8b51eb59b87fba03742f61b154c47a0129ea046b9c1a40256921484e5175808a238b1f1dde1c",
    "signer": "0x7F19d7A849664D59FAD5aaCa95626b4Ed990E2Cf",
    "userId": "158936423"
  }
}