{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174543",
    "entityType": "User",
    "nonce": "0x29d960a4795430fce2b466a011db093060ad8ec34380ae516eb359dcbf7cbac8",
    "signature": "0xc430454e76112e669c84495a92ea98d4d561a0e744070b0a63bee109133420424d0a9369a13aa16fc48a06d5eb28ec931587984102c0c166ee360678cb145efe1b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}