{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeff9d20960464abc670b33ccecc800ddc81c2036cbb561f4134c6a86d3e7443a",
    "signature": "0x802c4affbf1c5b5bbc26a41072cb37a4b8f8b7d7118a1b10e0d017321cf1bb3327221e39288b1821c38b33eb81108b21257f850cc3440980bee681163b2594911b",
    "signer": "0x59F214C2444449BE6E787bC1568Da6FE0D45630E",
    "userId": "486892163"
  }
}