{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42337",
    "entityType": "User",
    "nonce": "0x41bf42fc14a0f3c92aa088a795d3411e022c4fb39adc76e76d39afab92de7b51",
    "signature": "0x272f0e04fc446055918e7ead970873c2226de1c86e7678692c5a4ff232d5ceef4a8a493002445b2d25189b8f5aaf59dd7679016eda81afdaa11f246fedc31d311b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}