{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "263054",
    "entityType": "User",
    "nonce": "0x515d7f9f338dad1378ea0dfd623b8e752bf57244c0b272d86515115ed6c39022",
    "signature": "0x0c3b5852aa91c53ecac1ac7685573d5bc67a056e5448355b53c1bca94697945b089361be62b2bdf6ecf3b524869587fb3bad276f08fd4d7115ab3f95ceffeb6b1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}