{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1855805",
    "entityType": "User",
    "nonce": "0x2522d7c66647e18fc4002affc5387f7e0f00b6e3eb418c49ad1bfbfd7d068a19",
    "signature": "0xea3d40d199f5823c4266bd8ee2339a9a684b525bcee6399f7277bccaabf4ec192d4c79558d18de5cff0452274bdd3aaa96e34e3cc82a3edbc8d43bef14dd11101c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}