{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "422727299",
    "entityType": "User",
    "nonce": "0xa6caa51ae3595cff39b759b419ca7575e570e460b4dcc936b7744c704c9262ae",
    "signature": "0x3fd01249cb9f516009c0280214259d55a60954a91b1fe1f151a4f572cb14198449da19f4d67db1fcd063ac33f827dce26d29bc6193a9f51a6a3c9cb82333c1561b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}