{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x9fcccbdbbec8119f77c08d2bc4694c338395f1ea106f257631a1deea07fae645",
    "signature": "0x54cc4d3394739f006a26c1b7965b157ee8803c04310760cb7d379c116ec832ee2d92bd06f251c0cf12adea608f49c17cbd0e85fb0a976872bef150ab3a504dd21c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}