{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389177",
    "entityType": "User",
    "nonce": "0x24a15233d992a0ddb513af33bc0135b43b83bc17092723202182e74387311367",
    "signature": "0xf0ca1a8d66510c062f0c2671ea9a7da4d0b351dffeb0bcdbaf4d06a4296300c40596a5d450f90bd208127f7e8d200e18496f39d0b11b7c54014f29b9f6e893101b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}