{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1917560",
    "entityType": "User",
    "nonce": "0xf424cf99be473f4ae7d41ec7e97d88662f32329add07d91892bd80c7ffe7343f",
    "signature": "0x8e7844fe652f25e9cd72baf407c7a68447912220a51bf7916dde66abac4b9ff65723aeba359e1f88b5161dd12efff63194be9ff99c6899aca9fd8deee3ef39d91c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}