{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "971292289",
    "entityType": "User",
    "nonce": "0xe7b3e02fe187ede4190e3559fee7c2deabdff13351eb57ffe6862e0ee0830b30",
    "signature": "0x182444a87d922252cbae1b4ee494b92011c98d1ea0b8ecb6bb65a751e388c11834e14b5c66d019d263be471e93ef5fd8be42acda35d151fe00611f4355e2c4621c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}