{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0x01b27d6d9d74d291fb469372b5e718db9b3f902262c9c998e9ef67483e207ece",
    "signature": "0x99d4a9f7fe4898f65032451ad747ef1db7c68dda975670d8d4ff136eae0dd69b2a24e21951679e7306271efe00c50150695290d4add28c2001433ae4054d3a441b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}