{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "785945512",
    "entityType": "User",
    "nonce": "0xeded3cc68f854328057cbc9ce9b62cbd68009623d58435d9048b061433c91abc",
    "signature": "0xb3347a3eae29354a2f09b7c5aa046a80308e0dad681c8f49fc37da1cc658ee586049c784ba3110e51ee6be5c4ff736dc8102a62cd5ef6c917a741de51257ac5d1c",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}