{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1674010",
    "entityType": "User",
    "nonce": "0x5eeba2ca59516b11f19ae9404190e80a0339ce69c7aabd3d6b070e2ca2925442",
    "signature": "0x6ac86b6b3618c72012a3c7a93832fc81e58d8c04b689f4016f397ddcbe8c088420d8d9758f99a3574cba18ae1a24ec400fd3e68e2a8502c5ac5892a601a91d431b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}