{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "245045",
    "entityType": "User",
    "nonce": "0xe7d75a2c5d00d9a552c4b37ebeb683a941a5cd471b74285c90238ab69a5a29d5",
    "signature": "0xd4f8e7b0e5f692cea57a106996cf197abb18c3581ddcaf5481c961fbcccbcac56de39e1011a69be62481e0a0b52c0d21cc14a19fcdf8de9a65fe70c7ee86a8171c",
    "signer": "0x8125AfE6cC2f6619338afC8F5bF3f767873830A6",
    "userId": "790516543"
  }
}