{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10842",
    "entityType": "User",
    "nonce": "0x56a3f9d1af9b8bb71068eccaa59d8847c172867989c1b49986d4e777a84f0c05",
    "signature": "0x72f74b8857d3683c3e970432e3dc6f22120119bdb1518b6ba3beea4b45a9d680487d8ce9fdf18baf3f34a1a6c62bc03053eaa3206c74f3638d3a517f8fbace761c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}