{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "213759",
    "entityType": "User",
    "nonce": "0xbe2b956f2b210dad5ae6dc013a291a127e3439d14da3d020a099fb65b2682840",
    "signature": "0x95d8d0d3cc3f57228a1b3aead50203aa206463eb707f5104f5db23cc43b70b746e906286dab57f66f2bc2f562a7ce252f711b1a33ea88fa6dae3e405ff7cdd491b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}