{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xba6c15b7dbcaab4ed7b6d96ea75af5bef96a4e257669eb40ad509393f637ce87",
    "signature": "0x3446d604a87307695a7cc3eb048e5a44162be637e5c3219cd17b41dcd10f478c1c2f52e1e81cf847b437ebaee648586cacedb7f7653e51e2099dd9b16ef17fae1c",
    "signer": "0x1cdFf70c3148938298C2f37555e69D65C18D364b",
    "userId": "356982132"
  }
}