{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53868",
    "entityType": "User",
    "nonce": "0xaa7acda849fe4eecd239494b57cdf15f02ca33abf9f44d52218091b809564d11",
    "signature": "0xab78bd91434a0bb33cb73f3892a312e72b8cdb972da994ea768922dd24a1139461bf8db7a3f0fa9fe3080bdd68814c53ba8527264f5bc02ebb0d18e8388b758c1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}