{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x5d2970a9c4598db4daa6bba099a7d404bc9adf718fb42dbab429a6e2b13fd486",
    "signature": "0xcd55ddc948b129b548abd0f612878e059104fc901174ed750494b03f40b2c44921e6d7e32be901677fbd7b0d8804cb6d4270771c4412c21cfa59c971adf4bf491b",
    "signer": "0x86a8d0B0576f514420Bfba22eEB0Ba1E179885c7",
    "userId": "486842310"
  }
}