{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8960e0d989f3b7e18c466ae50bbc03c7cf7ab3f8cce728c72a8fe62520f601bf",
    "signature": "0x74ba89a02ee255280c01a6e16ca6f9c145499fa80e4fd6023764600b18494717544a62828023a1c6857e751faef2b06491a540415d85c117c822225fa6a33dd41b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}