{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8174",
    "entityType": "User",
    "nonce": "0x68015a42de8bb9e1908e802606828e16418000f2eead7b0884850d38cea1c4f1",
    "signature": "0x386024dc00416c9badd65726e64fa713936dce5caa5eab9181913d90a9986e1e36cfe89078227e00851a1135efffc9c03cf3aef24a8191050d5a3874afc6aa931c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}