{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15623",
    "entityType": "User",
    "nonce": "0xd866c383917b84e5de52fccb72c183f51345519bcbe32f821871d36ea9d02357",
    "signature": "0x11fbc526277812aac4c0eedac99de47975e01c94d37badab413d9185c04b4f9f5739736263ee2903de3ffd6e178daeb1f285128aae58eae618261d15d33f0ba51c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}