{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345624",
    "entityType": "User",
    "nonce": "0x065bf78e801dc645af4b216d428938fbc055342fae15e6cb6b052d35cc8bb0d3",
    "signature": "0xc0de9480382ec1931f5f637ab5506706a4944405d96c932aa1f2e112f14f793919e9858f42a25fa5674ab9b818926fd6ea8b20239b23f2715ef1f42c470064091b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}