{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb2862a69b39aaa53a11565b1b7ffb2faf70c3c742849785b5c355c6f4de56ff7",
    "signature": "0x2aeca5eb0cd2802bbdcecba40bfba722435928d81b9249c632fecb16e306ef3849fb2e181d818a8cb1a09f26307fb2042438f0d2943e6a73d135a154eb9c4c241c",
    "signer": "0x651c879abaFB508Dc7C0697bA02a6552f62e2b13",
    "userId": "246472329"
  }
}