{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354073",
    "entityType": "User",
    "nonce": "0x31ffec2d759fa670a035f79ac1999b916e2223e76964b0363fdfad03b9a81da0",
    "signature": "0x83da9cdcd30b7ea31e7d03e60cdcfaafda9db640bc43ed23fc282d87fd32ac6630b21116bd538b9ebcdb9078bfff0423fcd3e7cf815f22416e62c772da74ee461b",
    "signer": "0xdA708531501D4f46C162eDBca1D759CB6e7447c4",
    "userId": "985405611"
  }
}