{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2910",
    "entityType": "User",
    "nonce": "0xed6a755556371d610010eaaf0792a37852c01a8fd51cda56b7e0a07c9dafd120",
    "signature": "0x1e5da9f93502ba3c0274aa5e9552bcd9482c15d8e45fab9f8f57f5b7a31d025b742de05fff6b2355aa4b9f3ba5a4333a9abc0cee64123a45af9c69aea1ab9ccd1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}