{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "79876745",
    "entityType": "User",
    "nonce": "0xd73bf336da9208b40221cc9c2ab4d1da0748128b318a172b687bb438b42da7ae",
    "signature": "0x268cf2c5080352290d1bb4a296e73bfd945438cb565bdf99df7d01526c1ae61a463754eb74e595ac58410ebeb8ab9a61e33e7f84e2a201d409a7e08ca8740a7d1b",
    "signer": "0x4089d1751487aA665C895419F2578a6Cf33BE481",
    "userId": "728155533"
  }
}