{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28753",
    "entityType": "User",
    "nonce": "0x2a4d1311b3109583b1e1f88a8be04adfae1f628644990a519b0b9acf881d8166",
    "signature": "0xed50d74153ba9677b3e9a0013983aa58f268b77b4bf2d6523a141f46e2ce5eab299f4f2ef205cfd1952dddcb9a6281b5b2647c710211f1b2150aac327d588ba51b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}