{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1996252",
    "entityType": "User",
    "nonce": "0x5c7bb9389cc1b22d30e013f1eead5ffd055cd01c762f1e086a22cdbf2aaea738",
    "signature": "0xc1ea8b720ec53f74840a3383c5f03b11a1c1f06f8afcc0c6a3ef40f1c1a564e528fe74259171542257189de4a1af243567b8296f15c8b796dc63f5a0bd8067431c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}