{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x5df15b5f0aea44b3ce53184f6d16344b87a757e25e3faeff2156174204184451",
    "signature": "0xa044c3edc82b92815f0ac07fc23d6604fe1472a902e7607828eab83afbac016d2650292918b9854a939e3724bc297889f0f77f443de2190662c6174fcced7dfc1b",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}