{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906222947",
    "entityType": "User",
    "nonce": "0x95db33d0b16bab00aa38e027b21af831d85fc0c594b26e15dea4bc0f1277be17",
    "signature": "0x5478be2caffe6f5b3033fc5db083e8f192a4bc1bdfa5a982c46761232bd054ab02d16977d5f8cfd6ffa20ba8953f5d19b41296ed093cfdff68db9a515e5471da1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}