{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19702",
    "entityType": "User",
    "nonce": "0xac999d7b47f3adfa2a5e1f30bde7d4f96df358a5d7590a9bec622b1a6acfcaec",
    "signature": "0x6f19f8cfcfff8a1a41867e2325277b899b8e5c4c9f6f586c41b31424540445a175e9cb3d395b27820c68e2c1f9f9a6377cf4b12782268efed9dda1a0ad04c5a71c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}