{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80173",
    "entityType": "User",
    "nonce": "0x1ed18ea657f1e23e16b1f54005e13c0f66c7f405cf9ab3653543d13e9208a66c",
    "signature": "0x4457aad963e22fea22c2505c278f373fba4414b040fad2af01c2782a328cbfdf11eba5505049b4551282e789f0c1f10994300f6657e20abe551e122e32a55ffa1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}