{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74647",
    "entityType": "User",
    "nonce": "0x36a87e48cbab74985854ca9ebb66519f21fda49079c850e65be49a090ee2d8a1",
    "signature": "0x5eda7baef8eea3bf849614e473b11da971d5befe2748d5ef9fe1c01a502d152141c50ad30d3a34ce975825e37942fe5e8bfcf80211b6070ca7c8a4f3e84ab0671c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}