{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53657",
    "entityType": "User",
    "nonce": "0xacef5784648945d2a6e2a2658ee7886fca72e2c2624c6ac431ccbfb69f38f3ca",
    "signature": "0x4c3772fcb79f6beb9f88f1c23482148af90a91fcc25b34035c9715e8218e93274ba7f826b52e1c57972da0aa7d829f274ea0a83c1a865677144d1cbb720a3a1f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}