{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x46be95e62b9b1cc49ea8147f31f17564d6b2fd85b88b6d7ea053a32cbc951277",
    "signature": "0x9f9a7018af3bc8501098c4a169b1e4e36a3d972de37e66ab185fc8ff2331bd641fa9bb842e4b61fe9e0fff4dde2765c0176f0780b0235faa6463e2b6582c50401c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}