{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190670",
    "entityType": "User",
    "nonce": "0xac119bb4a3f69d5432d22f375b75b186a95b77f3f567f5569011575cbbc36ec8",
    "signature": "0x4550ddcb0ebc65c02caa8b86bca6f966a25a5367d50c7a371f13f0bab1c36359131b6cab7b6dadf3e39adfaa58939f97d2e1a253cc80fcfbb42c071bd11d0b321c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}