{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5c277e114f0ccd3562676563d59770dd83e53ee618f98fda9d9ddcf5059cddf2",
    "signature": "0xc2fedb82010463dc77f91028012ef0ea4e8f6903c6b58a3e85db90218e78eb68333cdd998ae30ac75548e9fda78dd19e610f4363d60906ea7d720f3c7d2bde041c",
    "signer": "0x84684344Ce55DcFC798461e20515493fbf564282",
    "userId": "299323054"
  }
}