{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174543",
    "entityType": "User",
    "nonce": "0x319d72e114d6fb661ff88e0170677887cec3ef1c6aa3643791cf80d07b0d3649",
    "signature": "0xacb73bcf43d0f644e957f320b04f131375716e9ba7c14a1c70efb7cd3df9700f2cb466e812ee2b588216097af72b45612d901d39d8fc55768800e1f6bdd28ef21b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}