{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1420448",
    "entityType": "User",
    "nonce": "0xa5d82712bcbf52cd9f0ae9671600bb2c105def7b67cec41065d606576c1e7d1f",
    "signature": "0xc302247ffb176af171aaf936a102baa4455dbe8418acdaa9ea15336689af481c1cbe5ad3962c46b0f4442fa736c8e77db131fa5614a139a4ef5171c18e0290281b",
    "signer": "0xFEa2c41d314209186e519b7539c0FcBDa1F9f00C",
    "userId": "51657002"
  }
}