{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0xde754ae3d1852d13ec0131e2d794f8d131029557583d999dfa76d629df52897c",
    "signature": "0xa7329246e4e2d4d2fd6d82086bfe1602b39baf531bef9f40ac6e1cb9243a51075230b129934919c4c40191d0d1e321bf11d39cada6d8b68989d227812dccad2e1c",
    "signer": "0x385724dD7df996433e732c73201a749C6B37f65A",
    "userId": "260480467"
  }
}