{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x3871d8f57bbfd3d8b65661cf717f5da02222d8f9985e1891b475a15fda219bfb",
    "signature": "0xc609bb86fca07576428d020379967721742661983fc3e37787d292a244aea3f46344a3002a8716d7fa3c44abdf8edca53cc16e0925185c42bc1223c1aa641cb51b",
    "signer": "0xB55E8b098609C65D51a3a9540F355ceFc8B17802",
    "userId": "245646461"
  }
}