{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134943",
    "entityType": "User",
    "nonce": "0xf4e28c79635af25b18b91db14195b9a8e0fac3f72d5fb0f01deeaf979eec2ca2",
    "signature": "0xcf081dfcdd2679d9d14e2ba87fda0c7d0cb60eabb4af2f7970eb62c78c5b8e09028fa67c497441aab665d7a3c6dfad3235ff262c06741718dd5f2591d586295f1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}