{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "710852789",
    "entityType": "User",
    "nonce": "0x634506757d8146aa0a855ae8519e1faddbcf830d6ff7de530cff4823cc7fe1ff",
    "signature": "0x212295f3402eb0c7067bffeedcb114729f3f9e947c379bc10a35516059aabf4a12646fa944df898d712dfe01cd5c213807dd64376c8fb92d5eb16043943bd3ae1c",
    "signer": "0xC7B16Eee24C03712c67aa884907593f4df23db87",
    "userId": "56534466"
  }
}