{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16148",
    "entityType": "User",
    "nonce": "0x4eef10b5a523c56730708643c72057d65f78744c3d70156985e26320e43ef969",
    "signature": "0xdd4bc124b52c9bccf4d5b3e7896f6ff9a02ed750e033e82b253676806aa8536e316b5b0cf58d2c5f6e51551903e1a9724a128362bd4dfe43d71f961b457690e51c",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}