{
  "manageEntity": {
    "action": "Approve",
    "entityType": "Grant",
    "metadata": "{\"grantor_user_id\":91113}",
    "nonce": "0x39c50489d556bea2567e97107aa6baacc1a03b5b7d413009b612ee913a5367ff",
    "signature": "0x9bfca13e69adecaabaa5e0bc0e3ad224bc823e1b7a815ab7034e72b6df355c5c3f1d940cec2cd6802e9dca5bd45b8544c786afef30621d8d13a59bd50851a6571c",
    "signer": "0x15c09392b3d192e71eE5b8c7648fCf318fe1bD7e",
    "userId": "86672"
  }
}