{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "533199925",
    "entityType": "User",
    "nonce": "0x27c3619f672e27528254f4b8115abc2bf580b24dd9fcd0c73da32140944222a6",
    "signature": "0x181b7ae8f051eca390fadd153377b645ab60dd007c9a8d61f6d231b8b10b08e6728835f4c827bf8382535240498d6f60074eb89d4c48ebdcbe554c792e6d0bfc1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}