{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445149",
    "entityType": "User",
    "nonce": "0xb90f07fc60c0a283c53f40b08ea28c3776cd494ddc9270a64e3a4271b9360de7",
    "signature": "0xa265541286dc63ecff7ae49a29f0f5cee589ece7ef7404e9be5c2a660c28c2f37e0d4159a99a61539d4912f83b4dfc1a7b1be0b0ae1640e0fc6aa91bcf99546f1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}