{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85d51d3f4de3cc120ef36addb511172c96e1212bb2430daa6861e1a3cbb925d8",
    "signature": "0x65b7e8c7736c04ed8fd84eba8e268286bae1a7054f0ff312e29c05a875393f3b6968210443d24bdb0ed40ef866f1b4588f29f57637154fd866205169c7c513a81c",
    "signer": "0x893daE12c229a5429494928c551Ed6e66Dd07A04",
    "userId": "775902397"
  }
}