{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "188602",
    "entityType": "User",
    "nonce": "0xe9a30f9c83f69a5cc9f8e02247182045f2b5a67f9cafebf41ec00f42f5517b81",
    "signature": "0x0b5c53618ac95596e1e5027d2fe3ae2dca6fd0a35b7042c3a1adf0c3105eedcc4cc3c5f5e31fb66273841e67b6305b06b6919e1a0b9ebbbce38d47cd7b63b7461c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}