{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8038",
    "entityType": "User",
    "nonce": "0x1de543a4ff6c346bcc2feeffa97dfe56739bd52fa9b2d51b164315c472e4b436",
    "signature": "0xa1181e00aee16af357246fc3a35a8423ee9aa05bca57c7618323a65d8fe786c00f4d296c671fb8fd1ace9b6c022bcc31bd89fd1ed01c43d4a89b9fb4f6069b931c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}