{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71448580",
    "entityType": "User",
    "nonce": "0x41bda1daafffeb2258dd7f8bdd1cecbc2a4adbef0562f6b65ea167b377bcbb61",
    "signature": "0xe1fefbadd6a30b907aab094ae8d59ba567036c278a2f7fe81138654f9c6f09b3057cbbc838cf4458f731abd0e18d764b55f634b5e8d890d273c67ea8f4df5b3d1c",
    "signer": "0xC3Ac4CBa184F40C88d99Bf359f44FFA17c5624F8",
    "userId": "818848942"
  }
}