{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "197246",
    "entityType": "User",
    "nonce": "0x41e6872c6b29d5d4d97dc71c1d154ee936d3dedbbc50c9e532e819442f59b19d",
    "signature": "0x8376552e130b31054678f19080c53f7bfc8d146160c7c46cd848446f7647f5374d3447802aca162712339a4133adbc8bb4a43251ab07e651ec9927b54d0129301c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}