{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "687177546",
    "entityType": "User",
    "nonce": "0x48124bbab1ecb740edc5ed4c96f984084e9f131214e8b8f643f4739f77f54bdf",
    "signature": "0x6a17cee38e7c3ef34a39c230ff291d4f318ab610a64b5bc1908a76309c49884d2521d3daa8932f6583cb934986f1ffbe2cc6c4cb74bfe2a3d79cf34b1e1adb311c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}