{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1686476",
    "entityType": "User",
    "nonce": "0xcc36ba552f4ca872181b5ac73d9bc640a6892d1f4aa007c9cf268406f440ce85",
    "signature": "0xc99c64fc8786b5bca5244bd54a3b238baaf4ea6ae70edb34569c5dcc76fc67e61a62660121871b0d2afbecce175e6acbbc1aedcae8d7a9e0bee44dc2ac468bf41b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}