{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979252490",
    "entityType": "User",
    "nonce": "0x50ae51dccfa6cbd5fd256ce2f7449267908ce2ad5e33c36453db3a8f6af6a420",
    "signature": "0xc2625916b8b991861bbb39d0e6571815829f0c532c8858cfdbebf122f7503d76664bf636c3703fe09a440e040d0487686c071b747ce895a8043c72dc4596552a1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}