{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50962",
    "entityType": "User",
    "nonce": "0x219a0e0f5d75e0d71246d168302c9d76f6fdc7dc4df3cac753bc5283ae1b42f4",
    "signature": "0x0a2af9fb192a8c68f12344f7b82b9c3062b2d2f714c28a29200d3ef6deb897b45bd735f4c31799578935a87f9c7700b04a94c817f3c84a54e6f9d0245fd865811c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}