{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb31ea39cb6f0b1e0874185ed86f131dc512ee0a91c7a7791827ba7e8d8b283e2",
    "signature": "0xf7a11245786697270ac4b1755e82b32efb557d87101d47fcb0bbf2b4666b0b3a534eab26c7fbe149cd61396abdb048bd799298a0fab034a48a1f9f0afbf05c8a1c",
    "signer": "0xBBFb57f7C9f15E0B0ED2b58d48a547a932DA5757",
    "userId": "322663854"
  }
}