{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "420647095",
    "entityType": "User",
    "nonce": "0xf99ebf53b38e070d10c1fa81fbab7467832e0c3cc71d375a930ecee65700e609",
    "signature": "0xe9637dc5f4e5a0e585112eba112fe891f713135aa1976555b37ab304d7dfc0f3509a432648bd4f199afbc8d6f4e63f990d5dbb0274975e0b052c39893abca34a1b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}