{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x59f893ea6d87ee06c711349333a7bf824f824547009943803ab569b1f6e9b990",
    "signature": "0x9ae48a65b817b4e783328f5951b395b7affe45f5936783523b0203f30cc04cf6058b24542bc905a22aa6de1e94525fcae59a1322ab40c9d273c752a799ff33ea1b",
    "signer": "0x1dEaf6B1d816c1adBBcbdCD2cfaFC05945B9cF48",
    "userId": "524499630"
  }
}