{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81898",
    "entityType": "User",
    "nonce": "0x097c78fa63b12bf082b948effc66bf91f079a23988be2ffef7984497ec1f29f7",
    "signature": "0x234dec83b52dc7119e364fa21a104c4e77220c406213a8e832c7062f4d6124c1449d2bc7198192f91428f0e38411da01082fdf42db9e95d43877d75cd09dbf8b1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}