{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137298",
    "entityType": "User",
    "nonce": "0x7bc91e1d9d897233ea66aa4ffd01ef3f71f627696784d4286ecea87be1916264",
    "signature": "0x708d1d2f0733b95050851dd4c8318317a3815bc6153ddccba4dd9b0a4cb94f4963039fc3df2bd56aea8780a24f823d14f6e805e24957a0fe575bfdcec6ef26821c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}