{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809421760",
    "entityType": "User",
    "nonce": "0xd57f03c6331f1021ccb060495ddf74731790c21c4d9924cebe1c288f20549735",
    "signature": "0xc8d34ab5bd2913aaf76e957af2c4a67e78926dde5ccaf424306d54f5c7132ffe28b377079769a03208958908100a25bc01cbfdc59346d77fcb4d3e64be7cb1ba1c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}