{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7667f4955689a8ef45553598c22efca06a325196fe9d1c742b73baac11ac5e51",
    "signature": "0xf5687fe95a3d58b1c39be5662cf01c2100bf7ddb8d8ff13a45ae0af29b5dd928063e8a2bac9d818b078861bbe0fa1661769e19221addef82645c299d9f9422471b",
    "signer": "0x4e04Cb9Ae43CA7d8B56d4BdaA7676dB0222c2a89",
    "userId": "148028803"
  }
}