{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "293740684",
    "entityType": "User",
    "nonce": "0x52e15ea18ced591b67f0a6e4328e173365315620889edb6d071dd98750590237",
    "signature": "0x7dabbd6eef9a1eb97a597c6c3f07efba25712da48a2e8952a74b5329397cf83c4ce578dd9c1be06b670edcdddbcdaa9477a53683ffa76abae5828d23c7a1f00c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}