{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "711953030",
    "entityType": "User",
    "nonce": "0x7f256381888478ed5bb5b02466cb7906ffbd6ea325c814b2f33a24e7040567da",
    "signature": "0xe071525152d1c3f2780b14009292407cf577d0c4f3f71a9d4ad31722f203efcb5c25f3d94b18807da7920b700b0b77c86b499a677b256256bbb5e3c06b89ea5c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}