{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123348",
    "entityType": "User",
    "nonce": "0x805cbb8f92f2abe568d55a6b806e4f203213002f887785433fbac73ed1e21910",
    "signature": "0xc2d05a61522db1ba74afd186c33cf845667a3aab251622805cf887fcade6daa04aadb43ac842b3aac12df9547a0bd1a9d01d107f08c324d6b6635efa07d9119e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}