{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708313645",
    "entityType": "User",
    "nonce": "0x94c5ee86b7a56395898b499bffc3f089368c019b16b0cefd93d366d1babcc48a",
    "signature": "0x1b9db1e3679656224fd102d8e66ae40e39bd59ede65613e00227af029a5949a456e67659770daa1e558e335151b6627cfe8d129c06a1c6b4ecc055e74f3ed92c1c",
    "signer": "0x4a57e2DeD165f5711bbB2bFF6253838BcFee1928",
    "userId": "268361684"
  }
}