{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x43e766989e99a80ecf18bf165011e01fbfc3a676\"}",
    "nonce": "0x310a548f903c5ed617fcbc04c36fb7600d23cd9b35bd4f022f173afc3b94244e",
    "signature": "0x0e2289a644f4b862444b1ecb79dbcf98ef36e245ebeba97991fa967bf22253f53463fc3070b51e43b3693e2596d38eaf8d56d46b4cf882957100f93e7907726b1b",
    "signer": "0x1f0eEffd3dB10c36bdc47daf6bA5e3aFdE77e215",
    "userId": "304921883"
  }
}