{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906004666",
    "entityType": "User",
    "nonce": "0x159829b630354c8e6adb4ce44c6ee338062e3f4ae0357e1510b921d488bf610a",
    "signature": "0x8e55a3e09cb8abcaefeca2a359b7376d6634249416e91be67ac02dde4077d1c1381661953a2b5860775b038b9ba277430a0f8e1f9fc377979bc935d9e9183e5b1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}