{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc8c288c55ce737082b521a131e4847f6059a3e88d6028533c75fee8170467b26",
    "signature": "0x64b9bb907afe8b8025c071683ec23989c00fe0906ef3a88a0d04c1e9a10c737f35f2cc0014dcf76198a71228d383400b17040b2b1061a7b94b2199e0d02cc8341c",
    "signer": "0xCA64BbDA27D57e38d67618952d774b5973744080",
    "userId": "358978654"
  }
}