{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170315866",
    "entityType": "User",
    "nonce": "0xe52307db9282669e3f78b16d25ec8422474bf3980e50c050df0bfe0e85d5951e",
    "signature": "0x6e67bdb6a68adbaebcdbe48f4161e3a0490ed0ddb1348f85ac8d31adcd4fe6b5096b4e89a17a5bd98b08a6cdda1c7f04146f0e9fe88537e2aa631144983837621b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}