{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf16c06f97bf9b26dd675c0e5482760321c7d2a002c2bf71e94795c778d03f86e",
    "signature": "0x49a2e0d4ed92825c33973db713400621d9f1455dbb2ed0e819822c131edc11c072622ce335533e1e064d675853978d629535f20ad0f8a3daee99f4628246a96a1c",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}