{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "869329246",
    "entityType": "User",
    "nonce": "0x878a015bf3bde08d7e5703afb1d9ae0c9b18339e69365a585120d4e1fb21d8b7",
    "signature": "0x9ffd8e0549c13aad3413af7332eed0e7c24127d4f5be072036034c7d7926710107078864268a9f81b08ce37cbd81c4b2f0e383f0f38dc3eb7a91d4dfad8f7db31c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}