{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42119",
    "entityType": "User",
    "nonce": "0xc03732d3fe548f4b8c05f3100a9d459ada472a73cc6857d60aad870b2f6425de",
    "signature": "0x16bc91ef2752edc803881a28e11c8a61835de35464d09c6f281e0a675eb74d1c0d685582dfb426ea9a063b74ab1a1f8cef2db75876fbfc1bae875607a170ff8f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}