{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194497",
    "entityType": "User",
    "nonce": "0x8991c1ba1c9021999c0ec9d80558308d18294dca22c18f461cfc817d3c20a50a",
    "signature": "0x2617476640b3a8e0f62f1a54236f31118abcfb0d3e9f6095c0588fff53223fc96d2d603744d14799bd69a45918a76a58b3a66617d602877c921dd61ea3c022791b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}