{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6722",
    "entityType": "User",
    "nonce": "0xfbbf00ece5f3518d0fe81562543fba41d67b827911ab18ac5d53487584ae29a1",
    "signature": "0xdf13a6c46a90376a1880137ce93ed7238bdc4c7a2504cf5de227b446acd30296146e14fa77ff9591845fad6245a2a64cd5b4714a22d022dd24767a9da1f288f01c",
    "signer": "0xF5C198A035503518a579b15Fb9eE834F3b4b1bAB",
    "userId": "765691673"
  }
}