{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68740",
    "entityType": "User",
    "nonce": "0x12fb43503d33fe1581657dc853108ade047e8f9c648b42b9ad954d927bf27790",
    "signature": "0x7e96ed7b1e25f0742aa784d294ed30d86353f1515f0159bf942b937a5735d0c83fb684e028c6a93aecfdd2f04e58080e14ef1900cdbac47bc38541bf038512821b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}