{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x079eca24ecb0c4a149cbfd018b3ca6a826dbe8056170088d97386dde6084e878",
    "signature": "0xdf6caf81217bced9064d91519ae85afdcd88707ddff22a836b8973efd555babf482398cd77fcb6908b65e913bc3ee82a4a2b1ac9008186e82e9c5f8ea6a52c351c",
    "signer": "0xE5EAe12918b936A8185A7Beb955cDc7d6E77CB4a",
    "userId": "877122711"
  }
}