{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28417",
    "entityType": "User",
    "nonce": "0x4d9af811ae0ad41099a80bdf82fe71d8250443bb51a701b453a2b8dd1156463b",
    "signature": "0x9f64b3ad71b02ae31b4389a7ec2aa720cbbdb47ea26979027bb120eae1c657317b3dcbe54411ad5ae54ec56d85a6170966da41c01572b9aa1729e82136d34ec01c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}