{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfa3507b4f16bb1bc3c94b38ed0bb8b342ce1d0a935c4028d92e0ddb672059826",
    "signature": "0x4dfee6a0d15f4645e07a21386e379158d597ca95b95fc063a4b59be64a5306c04469d294fbf7ec1d66e06fabd9dc19fd0af3746584dc90cf4aed606e2922d2181c",
    "signer": "0x3CD25F365962B68021CfFd6ed090911f096e00e2",
    "userId": "822788170"
  }
}