{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2a1061bfae0a6722a692e86d904ee77931f40f79ad75341bf863ad11873b7f31",
    "signature": "0x8654fccd93f31ac079aa90f61ab1466c6ee3ae011813e92aa78b1bcf996cffdf2a67771ef1cc2252f4ee44b6131958fa7c35637eec4e53fd950a141dd229d1fe1c",
    "signer": "0x0d4dBdB00C5bAae7C2D75B17bb775A3BADf297Ee",
    "userId": "336466356"
  }
}