{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x1494064cf806b48df456fb56d781520d9504361712cb36f35b95b6136dfb380a",
    "signature": "0xd603a7305608615fa45c7a82a515923f2e8de5afdef14c0dc71fda7e3bd3d83c4cf63700b0a7b7dfae78cd23ce22cd3eefef87d0465b070afe49ed172c02318e1c",
    "signer": "0x4d6701aee41cF386F0f1Dc360F47F200983c6c62",
    "userId": "454478631"
  }
}