{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x12138d18c5d1da779f73790383a1c4f9c9b32bb3227093d1878fb59338918fbd",
    "signature": "0x9547ee5c83f5c95175d65ed5f573be7ec1a129f7838ffe90f0b455012afa316f0269bcb79a131c90c1d85d0a55997e505ea64337b2e5c0704fa506360eb361211b",
    "signer": "0x599f6f52885C09BE0b0C2ddc61fE854643bbAf18",
    "userId": "199881045"
  }
}