{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "904885",
    "entityType": "User",
    "nonce": "0xf29f60ce839484c2aa11fb50a2ac38ea5e75f0105d52fb6ccb10af7ce2eb3118",
    "signature": "0x2e9b58453e83386329712541cea63ba6d7d20e44783b19d98018360aa571b52e7483b76a7eea35cd71f71073216bb0c8315fc299e58e979b89710ce83ea4e5731b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}