{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154057008",
    "entityType": "User",
    "nonce": "0x9234fe51ea4ffdfd34f53ca227ea148f1eda858384325277b599ebfa4db39290",
    "signature": "0x23a65c7c5d91c97c50c1e83634235317ec64b6126dc5556d58a43f7bb09724f6581c8458feee978561805583fa45b2cd131d5db16daaa69abf183b2cc8ac2ed81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}