{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0x7d3b6916aa10dd5a79e5f97c1cf6dbefbc666f9d06195dd158b248daa9e53219",
    "signature": "0x4e0af303421f772a4fe3e0aebadf745867d15e203469f9d382fe975c16dc21b879ad0259bc985991efdd1f1efa0ac47c7bd43c52112477cbac48f9fa15244b211c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}