{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x990821f26cd07e9d9e6944f8e67e00f843774ad55b0b260411f37bcebe5efc6f",
    "signature": "0xfad1b99f2a60a56e53f7d08aa3158b959a6859438f4386a27f8cdd87149c8a707868dfe56d0b2a32bef50b7fa2709cb1c3ec5aba48e48700b51d6fa60287bd3a1c",
    "signer": "0xBEa1dfDBA81a63AaE979F322c34709514594D0D0",
    "userId": "705121733"
  }
}