{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x404751f641193c6276844efea2dc77065cb8ee9c9b3b643a03d16b22e15ef6ad",
    "signature": "0xf724d814988df8a2b761bbf855bfe1d6c2e279bdf5c5b17fe568c6fe653e91e9735d706e541bc4e2e352ac2477728c6a67ff14dc2875e50b54d3a8c3847f52431b",
    "signer": "0x2519Ae68e37FaCCBA31dAe15107bD54a9b6b2f74",
    "userId": "8415"
  }
}