{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0xc4c0839e515f222052cf6a89fb21a2437c402f7acf9491bfba10fa3f8e3fcd36",
    "signature": "0xee6427db5c3ad59e1e4c864c56eb37169fd69be45a19f73195f4a2660c2a196d1c3c747f9645a9cf4ecd59a0cbc13aad0e8c428f5a4208f72575394d96adb8e01b",
    "signer": "0xA56552Ddf7D4d833c1B3e4f8D727B787d4D1DFFe",
    "userId": "629530515"
  }
}