{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x38407fb7aba424fe8ae66ef61ccd8a0cf57cce4effc3c004cc3de96687b4ce13",
    "signature": "0x90d3aa72f1f637d7f6461e6f60041e1e20af76fd813495bf20d21574d2b8cfa7367dcd50cc2a39c701f8605d0cd0dd8249e5a7791e1bfa81d15e415eda9b23b41b",
    "signer": "0xe9a34E1e60C16D6d6AE04648Be52340d6B2D8d76",
    "userId": "882372733"
  }
}