{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "625897998",
    "entityType": "User",
    "nonce": "0xeb037f03c72ac319c230723a9c4b34cb665d0f9cf1f4bde7471e6970af2c8062",
    "signature": "0xa3a0f171ab8c0d4c92061eb98366986a4a52c863bd6f69c49c1c9326e46539c36bd49959694cb60fe7fa9ba5486b5a9f4193a7ae580ee0bfc24dd9dbfc4ab5ba1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}