{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12",
    "entityType": "User",
    "nonce": "0x42d18f4407bf754cde7b553c4dd4f328e448ee4d8194c0160c9715411286c448",
    "signature": "0xc01fcf3f95d3fe16e3e05364293a4b023cd43982bdca85d880e399e09108efc357a51aa165a1163fe8312ac4a60181500c35372feea397e8eaf9ef66bad1710c1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}