{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "204228",
    "entityType": "User",
    "nonce": "0x7f1674c11476d7d9e6841e1c86222b259c76ee08e8bca1bea774c5515de872bd",
    "signature": "0x70de3f756e7ccab518d25a02479badf02b3c5fce44077cb991ae1c8a3a4599284b04299878517624445418beacb836dc4d47a1df3fa0d138d137774446c28dcb1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}