{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc8ef8618f807e5532a4ea759d1f6ee927b737cc0993c056f5d5650fb417b0de",
    "signature": "0x269b416e04e322ccbec8644618c1f097790a27376e822aa1c16a4bebe1813e0e601a246250460fb258cc31a9e5a830871f3dd514c811e43a5410036a522fd8b61c",
    "signer": "0xdcAd7f33F69C2A8af8516e8a10704Ad2c1b35101",
    "userId": "412584415"
  }
}