{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea430e87daea6d59bd1aa888af32c6f73ebdd06300343f15fa95efec495b4f79",
    "signature": "0xf4c636ac9f96b818136bc6b549761233a82a05c50982b80b1838123b4bf0cc390677b4e861facf80a07769a89ce7682a00a6a63b569dbb967c43b890c7747fb61c",
    "signer": "0x6c1C8d036b3c0119e31Edb58B17D120E6e91C833",
    "userId": "206524150"
  }
}