{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x78bcd16f39fe74a2b7fe6cb810e057c3a9bec951f5aa51ecf403f88586509edd",
    "signature": "0x9fb03fbdd60cf06ddf70538f125fa1c93d658e0a7f45e146f605e42424e8a1882e39d747227c7df2ebc710d3dc49e198d0e8964b1b4c601609e5459a236f160d1c",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}