{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239519",
    "entityType": "User",
    "nonce": "0x2d069d57b47acff3a58de0eded40bbc5342b7f896d20960f3897103ec3cc166e",
    "signature": "0xc5bb2c60345ee7ae36008397e3ec50927176e3b6f9ff75b5db3d6d1a593efdc94bc20f35c73b9b75b710d82a43d74ed99d187ea05a528f78b4fac67b7f6bffc61c",
    "signer": "0x76433fcfc10E04743aB4EB98660d4B47526AD243",
    "userId": "328228955"
  }
}