{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0xcdafe7bcc1d6b09ae1e6d7b0d7ab4ddca4ace001f64db621be3c7c7fb800c968",
    "signature": "0x1b2474ce7c3925d3a22f1911e8fa91c377998726d982021823b4c0c07184429d0afb6c08fe90750cd9e3f3bb4440a75e9175c8736144bc25c7086cdc32d9cbe91b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}