{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60753512",
    "entityType": "User",
    "nonce": "0xbf277a9b0f206de2630dc59a9d675dd197ffe1267bc3228bab826f25c9c6c00b",
    "signature": "0xdb0765ff85a4ae66d584495c2aeb72e5f3692733751a58dfe8d99ec5a0c230931129e842b33c33c260c7ccea1a8bf60546f367b0904ef2423115fbce34d211931b",
    "signer": "0x90508144365a4b20f9909C3C9b96a5aF240cC9F8",
    "userId": "330534898"
  }
}