{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54267",
    "entityType": "User",
    "nonce": "0xa5234aef43246e3e81709f5f0ffe9621a7b7f4fc28ec965124fde3144200766d",
    "signature": "0xdf127f21873be4f128ea761d941042758a8896640717d84abd1d2494ff2241023ade9ec6a6d8d75f977c2c6bb62a5dc5e76cc24a8e3e7c4011bb0da1b3abdcdf1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}