{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135721506",
    "entityType": "User",
    "nonce": "0x96c0359f3d59ad4f713b33f766cd621c7a6e23ab5effbdd52bf61e7ef87e0b5a",
    "signature": "0x54dc755a1084d3a99b35f4c9ab2b4541bc5e6b4a21c8b467245743e595221ce71e50799ccafadf9f071e28e51428f77d0bad6da40f33b82e340f17310ba910111b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}