{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xd23ce1fe1eca6392bf79b72df8bd4fa47e3a87f4a6d962ba0a036c53d98ec323",
    "signature": "0xfe965992ef80dcbb8366ad5cf331cc05542efdd3223622a3f9d425043274fb51196669d273030733480c8ba11f8debbd77e9362192989453ffc634c2b29c1cf41b",
    "signer": "0x4f6F1c2529c2Cd6d5084a73924689D2925cDB530",
    "userId": "482961981"
  }
}