{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xe61f3478f1916e2e870b51503fb3bb106ce9d75ea6c100f443f6fa1f4e9cca2f",
    "signature": "0x006fd9c0efc42a103de0acbafb5934206b7a3cc86036fdd4a28aebd252c344095910c9340ccd20ea02ced9a7c75d61bd9b4b1472186ad917057f2292d1e4a4631c",
    "signer": "0x75895e741b658Bc6c1e37fa9f2558d03aD2Dca87",
    "userId": "172983771"
  }
}