{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x54d3ea6ba31d6c669d24d1f8358c2422076d4f62374974636109df0d09a5c0c7",
    "signature": "0x3701ceea434d742767dfd35448d3d33b066882bc9d1710615a7c34b4807359be7e218b04beb53d5eaabc4feb09e5993f8bff04163e2bb969862ac0423b1a24891b",
    "signer": "0xa88715421a033d43379a5453E11b695CBc643d95",
    "userId": "923355785"
  }
}