{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "861108288",
    "entityType": "User",
    "nonce": "0xa15e49f05f42171d03cfe22617eaac48ef5d7667fde223b3d2575add3b96f94d",
    "signature": "0xcb033eb13ff2076584a6c160bcfa643ad038ae1965d2169a29fee44c610a1f8f26d1ef0acc0294cdea95dd3c71932fa142e0b16b69a8de864c6b04ca241096641b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}