{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1315775",
    "entityType": "User",
    "nonce": "0xa49fa02b9829e0478189a9ab6e6a62575a6d324b3ba7a0df775e1c639b2cc25d",
    "signature": "0x7894683d4a10f66e75c8020f87bceef887ee46ba5d309d30a87f258a3c49c7053be7c8d96b5a001d124cb6f8fb0c3d8a0060f65e1cdc4dc1fe5852bdc56718ad1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}