{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xc59f20f0aa54449e4d13eeb432e062de3690391359816cece8e5ede389aaeea5",
    "signature": "0x97e5a7091c8e8305e814b54f90a7b1b5972d3c922dbaeba83938d75abcd8385c38df391738b1e50e4c17cd201825cf20614347821c55a5b15c09a95dd7872a771c",
    "signer": "0x6c5A258b9a89ea700Aa790744E750a7B8dd6CD01",
    "userId": "865389599"
  }
}