{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735",
    "entityType": "User",
    "nonce": "0x4c1017f60f8da127bd243e56ce008fe09626d606d117bf6fc47563f9afc37970",
    "signature": "0x6835d5f5b90e31d9cd04443f2c5a3b7e136c74cdd20234771767171c67c563806cf582c9a59306efa86adc77a6e523fe2147af15da1d8c8ae839b1cc19c937fa1c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}