{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x779ddcb828e4f1b9a3e6674c7c8387f2629f3c6b59eaa6cf06ec01a1f18e494e",
    "signature": "0xb2b021a710542cfd33b745bbb9929bd442d74ca49173d6275ed1af84c229c46b1421650c5dff47f264814e2126cf62b5db4d3f5f5352ce98130ab7687b43ff4e1b",
    "signer": "0xf9EeCdD2929820c01300D043C1B581e82026c8d2",
    "userId": "298674587"
  }
}