{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327343",
    "entityType": "User",
    "nonce": "0x0fff29ffa38426de9599cb1053eed2b40f66a777b558f71dbb10492fbaf7c7df",
    "signature": "0xefd756308e8303d96d46c8362a20834f753a340904edbcc2cc841d3aa2660e1d6988469bd31831b94322a0477e2db5a8b3cbae598244531539464ae0209fe0c81c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}