{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x68ba99d9fe91adec19c9c9a70e91d95ab3629084a813a291cef49a14a5122f1c",
    "signature": "0x377f25910be506460e4b3f502e06fcc9ba5da77f1ad885dc917c5a45c1edce293f33d902d8a9982c53798765f76b4ab98726acc1d486009b38b9535225a950e61c",
    "signer": "0xedbaB5b2971F768e04CeeB07Fe8C6D0CC2d35bCa",
    "userId": "740066624"
  }
}