{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0xc5313a726c7030461d2b357c3d28fab3753c4cfe3a995f1883157a77e10ef456",
    "signature": "0xa488afc00a68705caaaef68e4bdee37c72bf794e85e11cb1ecda1751a17afe313aaace6426cfad7ae1a27115441b4eff447b65c507210cd186ea2d557d0eb0ea1c",
    "signer": "0xcBEfa88Fa365b5f3Fb8A75116D2be36F65EDEbd2",
    "userId": "908398457"
  }
}