{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3218",
    "entityType": "User",
    "nonce": "0x43810a035f2985d2d3cfce593014c41e0c52a1dde37ef51c95ce7bda1fc8e17a",
    "signature": "0xb79e0b6b3c9ca342222edeb5797e6364f293152d737eede4f378cdc974dbce434de7964c411178da54ca9b4349398bb7d02daa208c3b30ecb62bd6cb3bc4df1b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}