{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390985",
    "entityType": "User",
    "nonce": "0xc207854dc782a807c045caf3232d852bdfaac12dae1c094255d19c2206e03970",
    "signature": "0xf33dce5f5fa2fbc11ef47fc75f004b4197f5e4b0a16ba6df80bb1afd03a2db3862e21e62b6bb43c3078d4018b30350d41609a52f1223a4c01bb66b3e822ff8381b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}