{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "522150766",
    "entityType": "User",
    "nonce": "0x791a6f2b188dd26b59a7f122930c2e19abfaf204b189474e1c967d5f2d7d0d51",
    "signature": "0x65a4d1390e50c144d2d28a57b95940b20eeab9d44a013f4b1f06214e98f0dc5e16dec1cc14709d174b0765196a84d0909062885452c60ceaef6318da53194bc11b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}