{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103901",
    "entityType": "User",
    "nonce": "0x529e25483c3765296697ec79da31c4ea247317c5a5d61d3a46267ffa3828f3fe",
    "signature": "0xcd187a5cae6d5b6b422586813db4eef2cdd7293715838a727117fe56cf6438725886fe6471e5c3cc00c6bbf006ab9d4758778d8e0a5888ecb3006cc439d688741c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}