{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0x1a4806c47996e09a2e7d6a5db111b67cc98c5ff1c38bf42c03e24e59c3852a38",
    "signature": "0xe7ec7a1439c295ca8d9a36c6bf9ec5a77d7d683f0e4427b0fb9de06af64174a55a87da9313c7a442aeea727430e4bfa8468f1d3d8a25b433d3667fb42c6ab5171c",
    "signer": "0x9389EeeadB96012E95139B302a0B50BF7fD75D55",
    "userId": "421654712"
  }
}