{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237144",
    "entityType": "User",
    "nonce": "0x304a5b84d0f771e60336ca15322a63128841cb339dbe438d22858ead62b1d325",
    "signature": "0x8eaabf2eef974e40c7b6ce73827ac1ff22aa0b3d86040d016c24e51cbf69f0656f01001acaa84a9422508dbbcb3e5544aded38fc3e33c94e0313b5370a4b87c81c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}