{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd432160c1b431466f1613e5224c68eaaa355fad2db8b6e4cb4b1d430778071f1",
    "signature": "0x4899d056aa60d87eb4ab4d290a73285deb636a0100a8a0aed1e1e6c4c528683e53628f79aea0bb43932560da7c49120149d6fa6690d5c6dda3f39e04cfb11d631c",
    "signer": "0xe6a02C2BFEf1Bb0780777C2560Bf6e8fF5153c86",
    "userId": "776171442"
  }
}