{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd09be6d7ebe4661fa902c9b3619d6a3311cf716a275c938b230d822ffacb3176",
    "signature": "0xa2ed1a5ba8a958c408cd47b71788ab6f846d1bfd134022027fbed42b2197959c27be68f15a232131dfd77997934884d78fb6f30b4a364891ffbe91f222d2b51c1b",
    "signer": "0x32434E0b41660Db9fA4e47F6077466388a46920f",
    "userId": "12199196"
  }
}