{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0x0bd1ecdc8bad905b2d77711e3ee5d456a09ad3aa60195c23005793a5459ffdc0",
    "signature": "0x41c9dabde85481f9719f096753181399c0152565bcec506805e36a05900fdc5c59a33fe3f364c98d61dd992f0dcbc96ac0f7250c699c7ec74b780eeacd1d47f71c",
    "signer": "0xFF2527E6A1Ea0651d212A131Df20a0352e21a5f8",
    "userId": "520227443"
  }
}