{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6186",
    "entityType": "User",
    "nonce": "0x4849a44e3d6cbc91e29ad5955543601e9653ae0f86b58824afbdcfc400bc287e",
    "signature": "0xd5d87b31928c2e03e18540761023a24911bdca90a3f193bc461ff94faab415dc1d614af4c3d24188d433b8f39aa6dc0542eb545a26b4d8fc5d232983a270d6a51c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}