{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1cc6bbc0c96f881c096b3f5c99e382c7a883f152c239c9eb135f1dd00602da78",
    "signature": "0x4255c80f57f5d299af75bcf6e36e0a49d4c6352063498ecb668f25111e5a14d360932c20f8b87e1ed3e01b1bda94df86d9ad46872a0b563f29b77ccca94f0a1e1b",
    "signer": "0x526c3960D672Bcf1D14F5841B1f1b9F2Aa51De01",
    "userId": "605824607"
  }
}