{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715241773",
    "entityType": "User",
    "nonce": "0xeaa7558106f8a243668f5cb4b217ffc89e2b2729addb74ff20ed124a2ebc68d7",
    "signature": "0x490c3b7072c468f7611089b5baf161df4c3907c77e30645666d6715a8e850a560e0b564607a5e4530f910ee5018ca99c46153f606bb00ff8e7dcd94b63e0a4d61c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}