{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977815577",
    "entityType": "User",
    "nonce": "0x7d560e79d4833856c7677925c2f75dd364649b8f168933048b584e009680a6b4",
    "signature": "0x9a8402eb21caf2a9974f27d0af69dcce029f9af78b9e1a3195915099ed1697531af44f5228e2792c9b6a9c0ef9b719d6d570d9f9cc7022afa34f37988ac1a3cf1c",
    "signer": "0x5156122E7f53a879786546b3133306b9F7814b9b",
    "userId": "781663071"
  }
}