{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x16744a6460169e4566d1efa5d86a1beaffd2f365d1a289f587ad02313ca5ac92",
    "signature": "0x03c92cd208131885b39d4ee703277ca820e25647198c84a87f71ced4aa3d026a5596c2ce67e8857a5accbd85d99d33540115360083affad0a237215a0ec983661c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}