{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x118fd46c6c517d91c8442e9f23a32d914f6584b5ad3794963920021aa10d8a77",
    "signature": "0xdbd9ba4aa905a84c687fdd23fddef8245c3b28808a337d544e4deb9f847f6a477969e69345baef2bce4b49e573b12c8875982efc0a65c06b7e9c4bbf929cb08c1c",
    "signer": "0x4184E4f0efE61101565663bC500940db9E79C69e",
    "userId": "157709188"
  }
}