{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0x3a54c52a1161520cab4d4a745367dc4a4c9df05aff641addbdadce4eaa3c011b",
    "signature": "0x3ca73fdde3f1cffa790a93b86529906ff841133a2a6100bbbb47eef3ed09bc2159de910fecfc37ed898542335ce53e0c33cb259e03f4a1240fd0fec594dbc2f01c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}