{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdf28d5c248ad2766e9bc7ea8380b28d606b3648a538339c28ba07fda51354a31",
    "signature": "0x4008edd44e5c86e93fb204b6a1eaad316f73feb54bf2fab5d91686b57f59d73776966272752fd8c67cfe97ee5acf4a0b13eaa336b333ea15ab7cbe470e8e69f71c",
    "signer": "0x0c719578497D6a1FD2618b1BB0EA71951D9d5C1c",
    "userId": "253853465"
  }
}