{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57576",
    "entityType": "User",
    "nonce": "0x05f53d5971256fe83e453c326ff9244fc9c1abd01c7ea63f9a9f9c474cb59707",
    "signature": "0x156918d31c545614790278206444106f3e18e794ae82ea63dc1bb13f82c0ac0119165c315123c468e3794493b7b3fd43540e073c0a0c5a32f63cc7ea433b0d5d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}