{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916107216",
    "entityType": "User",
    "nonce": "0x14ed78f63a59d62e6262ce42dc67d0601e1dc36f2dd4b042591dedf30a4db4db",
    "signature": "0x76250cf2febd20f9319c7196df0100cd655a0fcf2d9b796ed80526e5bc56f1d75c808bac72e6f3d9bdc7bc5afa19630a925699ee06f38c960aa822cd953f30121b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}