{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72971",
    "entityType": "User",
    "nonce": "0x7cf2f5d29f024e5594cb0d536412abff5c5a8de9ee678afe0ca6aa2eeeac8cb8",
    "signature": "0xdc4f25360bdbecb362a183283ae496a6a4beadd7bb1974152c71acbcfa2bd3ff50301da612eb17c5d4c79900b1840d9cd003ac23da1ecdfe53262ee56f59d51b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}