{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x588b54d4d23e6927a03656a923c4fe66ae0288be760d94c05bce490bac520951",
    "signature": "0x215171fffc67121e0cc5a0513984769bbf756d45c365a0704526b22f735e97bb36b371c12933045bd6ff3e033394bd5463082e82108c19cffc86e9e29e0fb3fd1c",
    "signer": "0x045f3ff2A6ac0332f4f6288E35B9d3d1Ae169354",
    "userId": "704529763"
  }
}