{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x033da56e8b5fbbce1a785befe3631c7cd54421dfd5413fa77321ecb928641f80",
    "signature": "0xb764b4bdc930efaa02e45d56305e499d9b0701c2767c681c172db5e4358d4c06350630617c4f154bd0834fc415e16826a7cf1f959c85220ac8d1f8703b26c3a21b",
    "signer": "0x31529A3Ee1E76583c6Ed2fd2f4e4152094786Ffc",
    "userId": "681447296"
  }
}