{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xd0a8beb28142045e3aec027b3c549e56f0852204763bbf598149f253eede1065",
    "signature": "0xc55cb11d618d89cea2c4020f775244cf2e330b059c846263c3e44d795199a27d3bb3a2bc77bd7a6296c8476062c0642832aae2ddc7ce961ebccc7154154d16821c",
    "signer": "0xbffBd55268B577C4dc24D2e7649756f4f0E75749",
    "userId": "717429652"
  }
}