{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "376830101",
    "entityType": "User",
    "nonce": "0x29141f554b9842152787883f564f6ab6d6bb3c3bed7347f9f3022ea6368fb514",
    "signature": "0xa3f74e074abe9f1a90d7fcdbff3ca761b563396214e0559833344dc1aa9fa2d145475336df9bd26292c0e162373e8885b17f3daa8ecb04d05a4df47c9656172b1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}