{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xc2f8e84165182af49618b079e996a5ba298b5c12424dd09ae8140fb6e0865125",
    "signature": "0x6187d41334dc443e405ef3a122a686914f94ad0ccb7abc3ae99c1eaf3539b6624aa9fa37d79aeb4d1a08b404a30f64b1ca0e000b4869f65f5e92ddde6609cb851b",
    "signer": "0x1265f0C62f63e733ef6f5A73800dAc6eb1dAA462",
    "userId": "551524903"
  }
}