{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0xfa3bbfc623f183f7c6335f68c9029827e54c5c79083727c344451cefbfe2f05d",
    "signature": "0xfeeb54918046148a320bfface9b8b6ff5c961f2423604542db16cd02a84ffcf7236764b910e054298c471961ff7a803cbf88a829402d89343610534e652dbc121b",
    "signer": "0x1d99b1D22cD500D165B1A1CF625E3528a447A82B",
    "userId": "22193"
  }
}