{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209310",
    "entityType": "User",
    "nonce": "0x8f34593445bd8bd2894acab7e6555ab65121bc1d5003cb7fda8c495512b52d31",
    "signature": "0x07a6c5e47d78dfd0cbe33999e85fa540dd02ee1952bd2ea0d5636f260dbabafb6806b981acbbed90057d84d459beedf9ab2293b9996d4456e0e1d7133dd78de51c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}