{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0x4ca30299569308d633278300984b12020b95105fa8fd047d2a04733da7914af6",
    "signature": "0x6d595bac9678fd6b2174c7ffc282186a6097bbad90b7ba56a2941f95418d1a3c037d7a98ef598e4d666042b965303d4e1397699e79320877257fb79f57b31a111b",
    "signer": "0xdcFFfa8EB0B3CCeBBb8F585ceF6b6dAdfAb46292",
    "userId": "468388066"
  }
}