{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0xd1ad1c7d5fb357eaf94abf039a38c2df86ab955f3f13f81ff8e8a429d7cc7fe5",
    "signature": "0x8f1eac04c0916bfd991ee6a42cb48252f7741598e847a7e1f7bca63d066e01e14fa2c8144eaf763aaf4ce3fe50b6767b6fcafb4842c3ef9e45285ba7ef84bd871c",
    "signer": "0x686ca55E05dfb50Fd623b23BA4F03cd000CA9582",
    "userId": "969864347"
  }
}