{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "627522830",
    "entityType": "User",
    "nonce": "0x6779541a35e77e59018121d28c908274cd92ddd776c5ae57b2c00f98464c7610",
    "signature": "0x8ca6c67a3ad0d607d2af0e1ff9bd721f3a2d40f6bfb6e690120fb82b5006d1617bc9cd21f9693505299b2ca5a0be13df797da7470284855020ce06eb9567756b1c",
    "signer": "0xd4097e1C61Cce444638fca6f8529b9074064A103",
    "userId": "330788652"
  }
}