{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "631298549",
    "entityType": "User",
    "nonce": "0x9e9516ab3c673539f976ed2c8ddf215a0f32c8162067ef82681f160e22231cda",
    "signature": "0x4a203abdf17f53f8d6d17303fe26d7eebd02159d6a4f191d93ff61a7b193bd19688c9390a806aa9e8d176f2943c08d09264de7b55571526ceb0432fc5270f7d71b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}