{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353372364",
    "entityType": "User",
    "nonce": "0x2a3294466273b6e9ad74ca7efa3e24a14c1625af20a42b11bf2f8a7ea75cdcae",
    "signature": "0x59e07209d037b683dabe7268ed7138206707db7ee090735e3d9448dd68e1db6a709498f554f925de5f0cb79c61930753412989239d70dd0b906940741e1991201c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}