{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50f495a95824e9292fe1593d8ac7d42ef5324044810d9da2fa898a28de79216e",
    "signature": "0x426364675956a9252315b1d443b2137d3d6ecb0eb0a7226f481a92587a58e68036eaafecaa3df3b8c4eb73ae9de25193b3d1fccd00a2e9c314ce0dd4c7e118e81b",
    "signer": "0x52A01a6013cF736c7ecad158C49e014739897C77",
    "userId": "497567784"
  }
}