{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0xe3404c995aceafd713c3bca79e9763f26f2dc0d84e60c30b552b521ce0e1c6df",
    "signature": "0x77ce2bd87dadcaecb9b4a19f8903ce963d65f8e3ee6ae86d5cfc25fa067be02c364d51820a846e0220044f7dec3bf80887c80da0654ab73b97cddc03c5cb67571c",
    "signer": "0x46ad663822c7DD7797794Ded77750Fab663090d2",
    "userId": "614426220"
  }
}