{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x37a8501dca29d3ab2b0c04c933fbfd8e2835b138b05d7e4923ebae9bfba159f7",
    "signature": "0x237eea168ec64443faa2e86ff39b421b2a757c1256cbd2ba21c6397f525a1dab178c0419b49f39d1062c87bca02c405d391e972564e34bfffdbcdfa0f21039371b",
    "signer": "0x849b8180f084363b37768C823c174C9786020A66",
    "userId": "817339612"
  }
}