{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "46389738",
    "entityType": "User",
    "nonce": "0x1c4aa1a6ec97e44c4ac58edc2e8c3afa48334f02bee29ef0233a6e128a996549",
    "signature": "0x475b893277145d22182b63e13bf6fb862ea5bcf714cefc67a31f091be3079c6d5b65a3fdd042fb4efe38f03b5533915ebc87ce0438ab2b2ebc613269da255d201b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}