{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x248a3c27d8248eccdfd5827ec1bbd7bd7df905c0fcf52495e769ea2daf6f0e05",
    "signature": "0x88637ba7eec0c4d68b48a8edaf70f11b5cf6b4b135f25ea907dd02268e30f03e6a64bbfbccdc8edc150e841f876ab5698bf0ff7289f5b5d0326968d7fca0499a1b",
    "signer": "0x12D25A7a19Fe8130A1f3de655f59f1ac38Fe29fB",
    "userId": "566281511"
  }
}