{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "185108",
    "entityType": "User",
    "nonce": "0x155005251a7d590a7ba59fceeb893dcfafdf814a31f6680f2b6b6278a72484fb",
    "signature": "0x28d470f90ac8f67e2eef7509a576b1a93718633df288ccec6491d0b4c24dd11f7cf1e207d6a3d1bd3dae598b05ea6a11ac858e538d1c99b29d5abcf89c89e85a1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}