{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511688",
    "entityType": "User",
    "nonce": "0x3c7a36802a57cd1e0512acce05918e18ec5a9374735233182a9c4c3052710d00",
    "signature": "0x6db5f68ba762a1a1f00ac2a762c325bfabd739e709cda27f5cbdb172488e4add3c39c59c14f80a7727eea696485cf8c654b17e2a93add0c4d5853ec3937e819f1b",
    "signer": "0x0E08279c5784DeefdFd6D5d386A85B74072d15ac",
    "userId": "448138153"
  }
}