{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "402172867",
    "entityType": "User",
    "nonce": "0x19201dcc07144e66925f8b4edee21caa9042f75c5359bd79b1a49422c7eaef01",
    "signature": "0x8652c161e7dc9c85daebc69f9287f80240c5069fe1365100b501d3d6bf900166235f131f85c1df9386ba8f74fc918278bfb78bee49b2f52e86a6f73cfabc04751b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}