{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x584f8d6d7e0eecc3c54fcb0ae3c5c1ee145b201be634be2c3cc62e177085b380",
    "signature": "0x0d28a56176e4f6471d20c55f226407020a50581b87126a8b5da5164745fac42f5bdac1e131d9f2b7ab915e149236cd2b14151b4b3be7fb79fc06a940daf6ce8b1b",
    "signer": "0x59B12334CCe1fBCED2Dc85c4c59C1f9E31aa51E6",
    "userId": "582829295"
  }
}