{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0xe895374cc46ac1f65b597d0cd3f67ea5b5cb7bd6d94658796a2e81cd8141368a",
    "signature": "0x0d7d971efdbb66b890d7db658ca1b0880f88e4d90b018188497fb4ddce3b447d61770aef4eb84edd0bb8fa411f4d4dfdbe451cc304721eff0af1ae8819b175571b",
    "signer": "0x0e7e9e5ACbc336772430C8a71A6C4Ea9b6bC46A4",
    "userId": "423055172"
  }
}