{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "245818167",
    "entityType": "User",
    "nonce": "0x8b447237678b02ee7255eef808d1455ec66230243860f6a88308b348c1eb5f29",
    "signature": "0x5eafb2876e825bc8f4820965ed9d7d8196e3802d82ded6bdb4847e7d49c6eb1911342412dd310c354fb5a04ba56b47b6b6b640ad4b891870c11d7084b4c0dcd91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}