{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x7dc19fc79605fd7c78498959af02d28275715a97510dc2d8318959a9a0145f47",
    "signature": "0x043abbbf87fd203f32ed1cb7cbcb17ed97d907e30399073efe5569545760f6b429ccda12c85a0f956023413c53d7a323c8e094abc50d024dd9b55122d48377dc1c",
    "signer": "0x81f60DEAd0cdA833Ad17fe7Ddd37b36E62630205",
    "userId": "132087202"
  }
}