{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323733751",
    "entityType": "User",
    "nonce": "0x3da843872f554d313247bd64402d0f352dc07d5062e6c59f1e1ac33de5c07253",
    "signature": "0x6ea1e27b1dd5afae8ef67cb11dea59ad2e1d207778500b24cf206bef209d96286f5f604d17d7f9ba754133c54c6a57f511b8bc6da68b39fa859972cc6a42d7c01c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}