{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5562",
    "entityType": "User",
    "nonce": "0xe7381b7c8ef2becf3f85a813efff16c900e24d3e2be710a4a434fd5f05dcb802",
    "signature": "0x2d365a04b3a480a55444e07247a8bae990cd65dff21d6a64872956decb3400b30e8937ffb9432880530f397036a319fd64b50e38a9dc670524bce0877557ca2d1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}