{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x806855fb6632987ff81940e2da579cb1750bd11b471ebd5814cb2285e043275c",
    "signature": "0xc79956db0d70f1360006b39dd17662bd3c11d54598506d637b99c5cb703b73761f7954097a5c7b638e085311df54c48b937a09beb7c719595dcbcb96c52fcf2b1b",
    "signer": "0xaA70F76aefB1aceCB78C94D23C16633E39CF8fc9",
    "userId": "342378154"
  }
}