{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x52f3c7d2638b6c9752915a5275c64569e3641228f6a422c619dfc054862c0603",
    "signature": "0x7fd89ba77052dd65dbc6d368ca0e18e09cb29f5a43dcbd4b65aca68113390f57515c64d20b0a0c2d70d67467ba6ff59f63bd3a63fe79a85da4962b2115fb67461b",
    "signer": "0xE4f91E3A8000A515687CB659145de65A79Db9dBc",
    "userId": "616715353"
  }
}