{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270855",
    "entityType": "User",
    "nonce": "0x02067bbbe8ba3f9c3b128ff9721a91479dc77c0a8df6ef8dfd06129f9e1e542f",
    "signature": "0xa89f6e65bcb592c9ae1de5fd75bd6e19c968a4cf44b76698f2b25b3dfcabca5d76db723f1fc4c1ba3b31839c8708705700eebc9d793310c9911207eca9860db51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}