{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xdd4b8a8f40cdedb09e9b97c4ceb55f62120a5c530e3d851e3d634c38bf20f9bf",
    "signature": "0x2bedb1280eccf0a5c64ddf739cfedfac36ff2619f4f6b5eb2b86e472a5506f0c3d04de4b768ce3aedf7ccf6b2a2abf6e8bec7a9cc7c3f1dc3a498e0b35a423281c",
    "signer": "0x1ab6B59E59Eff2Dda95ae29c397Ea5f149C470fc",
    "userId": "832275438"
  }
}