{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464952",
    "entityType": "User",
    "nonce": "0xf9009c5a633a800ffed38ca1622807f6505aaa243a0341561a6a986800935651",
    "signature": "0x0b63b62a4edf5945efbd285d9013c79bc7389cdf4be7dc1f58e8ffaace047606424c3ba200ee85bbd94ce709940c08a934f1c686b590bf0ba56b74d1cffc6a351b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}