{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214509563",
    "entityType": "User",
    "nonce": "0x501acbf5c9ed67025348fc2eb307f144f0a17e4143e49b2615f9382b7fa4be6b",
    "signature": "0x16d30457895e6646d63022eb349f6afb625737c44af7e048eebf46195b66e7d97019601aa88561ef23f4c534f1b08f7869d86be7be803396cde5c2506455351f1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}