{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0x7c3a8d7d2062a241ce0210bf636492196b1705e421fd026ba16a8e4b122b795b",
    "signature": "0x7ba7575e1939293dd39d14d12fb739e151d2cb9b2529b6f1cf683578302ab3c1483a56733f81a821af49100b0b732351e3bd27109e1d9c682895e4c89eee1f111b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}