{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe6f651ebb748312b22d86deeead1dd0712adb2dff6d6fc1824da21ad6101c997",
    "signature": "0xbdc6e42ad85d5725a994b6d57327a6213db4a0997e6228edc09a04b08ce4e7071945d1ebbcfb38251c4dec1eae695dad36dfc0311da7abf7383a151bc68164741c",
    "signer": "0x6d7654C9a23Cf411358aB3F9C03102f8c62629a2",
    "userId": "269226599"
  }
}