{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352174",
    "entityType": "User",
    "nonce": "0x192eb9a566d75ce51f950e0d470a101e7fbf1dec8b6c0544454d698e8336d0a3",
    "signature": "0xab1c99d6dcfc919a53888a6efde6c2b11eeee6d441d41581a53c5623a2e1c03923e4e348234de99d2144b58ca304be88213a50890681a3ceb2448ae12741e1d71b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}