{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "866636243",
    "entityType": "User",
    "nonce": "0x4df83cba384e8ecf4648fd631217b2e798945a1e664284019af549a49c038ccd",
    "signature": "0x82f753bda8146265450e23973b05c721aa2d8d3300afdad6dd9f074897508fc93aca64652416ba06d857be21191f633bd19c9d6d6314047182be871738e43fa01b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}