{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x228df40288c61ed9a2ad095dff2031ee728517059b7282bd04180dc835c68e68",
    "signature": "0x2b2bc19cf41fdacb39990f79acd69bd3437844e44bcd82eb73757e367b2a946258ea8217cfa5c66c434abf38b983c29295ad9161658d644d1015624eaf93d3d61c",
    "signer": "0x52C54744FeC93B156A460Db7FccF10e22b6FEdf0",
    "userId": "194963084"
  }
}