{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x178748fecb5e8265d3a9796b189eb48551c936d1f4c6f304d1fb34b5bedf4014",
    "signature": "0x29b2cb5f5895722367f3fe01bccec087bc69db372657f72ae81e026564e17fe57b1b0ac06b38bf6be817c3f5a92b46b48dfe7034294519729c222dec67a5c8c41c",
    "signer": "0x42add65390A15Ad6411C525cD76d5cA82d628fbe",
    "userId": "668300139"
  }
}