{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257420589",
    "entityType": "User",
    "nonce": "0x07bc050e815e48ae0b4201171bf0211340646bd722a2c03d15afc5a35e938e21",
    "signature": "0x52b4df5fd6fe47b0eb5a371e26f6df46e1965c6e0f71ed8d7bde41f6f4a95add27ce3aacfd2117fb73b1e207cd59c234419019c397620ee96f1472a566433f851b",
    "signer": "0x1366a1037C8F2E691bA2D0dF3a1176FbA4736510",
    "userId": "39692"
  }
}