{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217745410",
    "entityType": "User",
    "nonce": "0x62a211c70354e2c3fa9dbba66d9be8f1b539f358f804c0e726a6bc5a8686818e",
    "signature": "0xac29f746187fbe6b68a1adc0a56c7fa4c4e824015110c93c2d3f2dd4c874cbd96599f6aec29111cc9bf97b89d354eb433f77fda2028113f3f6c132a74d94ad6e1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}