{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0xd13228cc159c94941d5e6e18d48f710d65e3d772cf29a7a8c867d0fc5047aa34",
    "signature": "0x05a879c8a59df2666b8f8284acaad941a6353ec19dac16cd40133c328b991b2a494ebd2c8152e17cd96d531bcc82b9d67d8c5e9f9ac3283d213317233df512bd1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}