{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0xed09f8a6ce2d5c9ed153b0aa574bd3dd6f2d0cd290c9f6032897b7e5ab812f77",
    "signature": "0x1c24cc9345a68f66e3ec56154179f10dc2cdbc178194216ef21a005b9c43f05a7c1d062fe31424f32f949af0505d105a8748b873ae9e51c22c178dad1210900e1b",
    "signer": "0x3D82316C60EBd13d25EF08e3FF5224f73A2E3889",
    "userId": "840257349"
  }
}