{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "909603442",
    "entityType": "User",
    "nonce": "0x9902a1c3abb18f5830718d1bf87573319bac5a9b21b4d9a0b3c8c7728ca03693",
    "signature": "0x9e0aa1630d9e7e1d71711f895859257e15d8ec64c0b40e923a8c09b5514038784b57517264620a8f59de0efc91491d291cf3c66d138abeea4ca62a648c8cfef21b",
    "signer": "0xAaC77705f5f6bd787D8581c36Ddaf7c0c7AE3370",
    "userId": "827420993"
  }
}